Younger than her fraternal twin Ashley by two minutes, Mary-Kate is often considered the edgier Olsen. While her sister is now fully focused on their multiple fashion lines, including the critically acclaimed luxury label The Row, Mary-Kate has continued her solo acting career on top of her design work. Known for their love of black leather, floor-sweeping hemlines, and baggy layers, the sisters loosely coordinate their outfits for public appearances, but Mary-Kate often takes the more provocative route, favoring plunging necklines and thigh-high slits. She usually sticks to clothes by The Row, occasionally mixing in other labels like Dior, Alaïa, and Chanel. Enjoy a look back at her fashion evolution (and brunette moments) in our slideshow.
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May 4, 2015Where: At the Met Gala in New York City. What: Dress vintage Dior by John Galliano.
October 8, 2013Where: With Olivier Sarkozy at the New York Academy of Arts Take Home a Nude Honoring Walton Ford in New York City. Photo: Billy...October 8, 2013Where: With Olivier Sarkozy at the New York Academy of Arts Take Home a Nude Honoring Walton Ford in New York City. Photo: Billy Farrell/BFAnyc.com/BFA NYC
September 12, 2013Where: With Ashley Olsen at the Estee Lauder "Modern Muse" Fragrance Launch Party in New York City. Photo: Ke...September 12, 2013Where: With Ashley Olsen at the Estee Lauder "Modern Muse" Fragrance Launch Party in New York City. Photo: Kevin Mazur/2013 Kevin Mazur
June 3, 2013 Where: With Elizabeth Olsen at the CFDA Awards.
What: In the Row.
Photo: Kevin Mazur/2013 Kevin Mazur
May 6, 2013Where: At the Costume Institute Gala.
Photo: Kevin Mazur/2013 Kevin Mazur
October 18, 2012Where: With Ashley Olsen at WSJ. Magazine's "Innovator Of The Year" Awards in New York City. Photo: Andrew H. Walker/...October 18, 2012Where: With Ashley Olsen at WSJ. Magazine's "Innovator Of The Year" Awards in New York City. Photo: Andrew H. Walker/2012 Getty Images
June 4, 2012Where: At the CFDA Fashion Awards. Photo: Jamie McCarthy/2012 Getty Images
May 31, 2012Where: With Ashley Olsen at the "Fresh Air Fund Salute to American Heroes," at Chelsea Piers in New York City. Photo: Dim...May 31, 2012Where: With Ashley Olsen at the "Fresh Air Fund Salute to American Heroes," at Chelsea Piers in New York City. Photo: Dimitrios Kambouris/2012 WireImage
May 7, 2012Where: At the "Schiaparelli and Prada: Impossible Conversations" Costume Institute gala, at the Metropolitan Museum of Art.... May 7, 2012Where: At the "Schiaparelli and Prada: Impossible Conversations" Costume Institute gala, at the Metropolitan Museum of Art. Photo: Dimitrios Kambouris/2012 Getty Images
February 15, 2012Where: With Ashley Olsen at the J. Mendel fall 2012 runway show.
Photo: Donald Traill/Corbis
October 5, 2011Where: With Ashley Olsen and Elizabeth Olsen at NYLON & A|X Armani Exchange Private Dinner for The October Issue with co... October 5, 2011Where: With Ashley Olsen and Elizabeth Olsen at NYLON & A|X Armani Exchange Private Dinner for The October Issue with cover star Elizabeth Olsen.
What: Shirt by Tom Ford; jacket by J Mary; shoes by Balenciaga; pants, skirt, and handbag by The Row. Photo: Jamie McCarthy/2011 WireImage
June 6, 2011Where: With Ashley Olsen at the CFDA Fashion Awards.
What: Jacket by Chanel; skirt by The Row; shoes by Louis Vuitton. Photo: Rab...June 6, 2011Where: With Ashley Olsen at the CFDA Fashion Awards.
What: Jacket by Chanel; skirt by The Row; shoes by Louis Vuitton. Photo: Rabbani and Solimene Photography/2011 Rabbani and Solimene Photography
May 2, 2011Where: At the "Alexander McQueen: Savage Beauty" Costume Institute Gala in New York City.
What: Dress by vintage Givenchy ... May 2, 2011Where: At the "Alexander McQueen: Savage Beauty" Costume Institute Gala in New York City.
What: Dress by vintage Givenchy Haute Couture; shoes by Nicholas Kirkwood; jewelry by Van Cleef & Arpels and David Webb; bag by Judith Leiber. Photo: Kevin Mazur
March 24, 2011Where: With Ashley Olsen at the Metropolitan Opera Gala premiere of Rossini's Le Comte OrySponsored by Yves Saint Laurent.
What:... March 24, 2011Where: With Ashley Olsen at the Metropolitan Opera Gala premiere of Rossini's Le Comte OrySponsored by Yves Saint Laurent.
What: Dress, clutch, and shoes by Yves Saint Laurent. Photo: Charles Eshelman
April 30, 2010Where: With Ashley Olsen at the Art of Elysium "Bright Lights" with VERSUS event.
What: Dress by Proenza Schouler; sho... April 30, 2010Where: With Ashley Olsen at the Art of Elysium "Bright Lights" with VERSUS event.
What: Dress by Proenza Schouler; shoes by Nicholas Kirkwood. Photo: Andrew H. Walker/2010 WireImage
February 22, 2010Where: With Ashley Olsen at the ELLE Style Awards.
What: Dress by Lanvin; shoes by John Galliano; clutch by Proenza Schouler.... February 22, 2010Where: With Ashley Olsen at the ELLE Style Awards.
What: Dress by Lanvin; shoes by John Galliano; clutch by Proenza Schouler. Photo: Mike Marsland
February 10, 2010Where: At the amfAR New York Gala To Kick Off Fall Fashion Week.
What: Coat by Zac Posen; dress by Topshop. Photo: Kevin Mazur...February 10, 2010Where: At the amfAR New York Gala To Kick Off Fall Fashion Week.
What: Coat by Zac Posen; dress by Topshop. Photo: Kevin Mazur/2010 Kevin Mazur
December 15, 2009Where: With Ashley Olsen at the Nine premiere in New York City.
What: Clutch by Maia N Ashley. Photo: George Napolitano/2009 G...December 15, 2009Where: With Ashley Olsen at the Nine premiere in New York City.
What: Clutch by Maia N Ashley. Photo: George Napolitano/2009 George Napolitano
November 17, 2009Where: At the Museum of Modern Art in New York City.
What: Shoes by Fendi; bag by Hermes.
Photo...November 17, 2009Where: At the Museum of Modern Art in New York City.
What: Shoes by Fendi; bag by Hermes.
Photo: Ray Tamarra/2009 Ray Tamarra
August 29, 2009Where: With Ashley Olsen at the Opening Ceremony Japan Opening Reception Party.
What: Dress by Toga; headband by Maison Michel; ... August 29, 2009Where: With Ashley Olsen at the Opening Ceremony Japan Opening Reception Party.
What: Dress by Toga; headband by Maison Michel; shoes and bag by Prada. Photo: Junko Kimura/2009 Getty Images
August 25, 2009Where: With Ashley Olsen at "Holt Renfrew Welcomes Ashley And Mary-Kate Olsen For Elizabeth And James."
What: Earrings... August 25, 2009Where: With Ashley Olsen at "Holt Renfrew Welcomes Ashley And Mary-Kate Olsen For Elizabeth And James."
What: Earrings by Elizabeth and James; shoes by Miu Miu. Photo: George Pimentel/2009 George Pimentel
June 2, 2009Where: At The Hangover premiere.
What: Dress by Topshop; shoes by Prada. Photo: Jason Merritt/2009 Getty Images
May 4, 2009Where: At "The Model as Muse: Embodying Fashion" Costume Institute Gala in New York City.
What: Dress by Christian Lacroix... May 4, 2009Where: At "The Model as Muse: Embodying Fashion" Costume Institute Gala in New York City.
What: Dress by Christian Lacroix Haute Couture. Photo: Kevin Mazur/2009 Kevin Mazur
April 23, 2009Where: At the CHANEL and Tribeca Film Festival Artists' Dinner.
What: Dress by Nina Ricci; belt by Topshop; clutch by Nancy Gonza... April 23, 2009Where: At the CHANEL and Tribeca Film Festival Artists' Dinner.
What: Dress by Nina Ricci; belt by Topshop; clutch by Nancy Gonzalez. Photo: Thos Robinson/2009 Getty Images
March 15, 2009Where: At The Metropolitan Opera's 125th Anniversary Gala.
What: Dress by Yves Saint Laurent.
Photo: Dimi...March 15, 2009Where: At The Metropolitan Opera's 125th Anniversary Gala.
What: Dress by Yves Saint Laurent.
Photo: Dimitrios Kambouris/2009 WireImage
February 21, 2009Where: At the Film Independent's Spirit Awards.
What: Dress by Balmain; shoes by Proenza Schouler.
Photo: Jon...February 21, 2009Where: At the Film Independent's Spirit Awards.
What: Dress by Balmain; shoes by Proenza Schouler.
Photo: Jon Kopaloff/2009 Jon Kopaloff
November 20, 2008Where: At the Grand Opening of Atlantis, The Palm.
What: Clutch by Jimmy Choo.
Photo: Kev...November 20, 2008Where: At the Grand Opening of Atlantis, The Palm.
What: Clutch by Jimmy Choo.
Photo: Kevin Mazur/2008 Kevin Mazur
October 28, 2008Where: With Ashley Olsen at the Influence book signing in New York City.
Photo: Amy Sussman/2008 Getty Images
October 7, 2008Where: With Ashley Olsen at Elizabeth and James Launch at Selfridges.
What: Dress and jacket by Elizabeth and James. Photo: Dav...October 7, 2008Where: With Ashley Olsen at Elizabeth and James Launch at Selfridges.
What: Dress and jacket by Elizabeth and James. Photo: Dave M. Benett/2008 Dave M. Benett
June 25, 2008Where: At the afterparty for The Cinema Society and Sony Cierge Screening of The Wackness.What: Dress by Emilio Pucci.
... June 25, 2008Where: At the afterparty for The Cinema Society and Sony Cierge Screening of The Wackness.What: Dress by Emilio Pucci.
Photo: Jamie McCarthy/2008 WireImage
June 25, 2008Where: At The Cinema Society and Sony Cierge screening of The Wackness.
What: Dress by vintage Lanvin; shoes by Sonia Rykiel. Phot...June 25, 2008Where: At The Cinema Society and Sony Cierge screening of The Wackness.
What: Dress by vintage Lanvin; shoes by Sonia Rykiel. Photo: George Napolitano/2008 George Napolitano
February 29, 2008Where: At the Moncler by Giambattisita Valli fall 2008 runway show.
What: Jacket by Givenchy; sunglasses by Chanel; shoes by B... February 29, 2008Where: At the Moncler by Giambattisita Valli fall 2008 runway show.
What: Jacket by Givenchy; sunglasses by Chanel; shoes by Balenciaga. Photo: Eric Ryan/2008 Eric Ryan
February 29, 2008Where: With Ashley Olsen at the Chanel fall 2008 runway show.
What: Sunglasses and headband by Chanel.
&n... February 29, 2008Where: With Ashley Olsen at the Chanel fall 2008 runway show.
What: Sunglasses and headband by Chanel.
Photo: Eric Ryan/2008 Eric Ryan
February 28, 2008Where: AttheGiambattista Valli fall 2008 runway show.
What: Coat and shoes by Giambattista Valli.
&... February 28, 2008Where: AttheGiambattista Valli fall 2008 runway show.
What: Coat and shoes by Giambattista Valli.
Photo: Eric Ryan/2008 Eric Ryan
January 19, 2008Where: At the Sundance Film Festival.
What: Bag by Dior.
Photo: Frazer Harrison/2008 Getty Image...January 19, 2008Where: At the Sundance Film Festival.
What: Bag by Dior.
Photo: Frazer Harrison/2008 Getty Images
November 15, 2007Where: At the 7th on Sale Black-tie Gala Dinner.
What: Dress by Giambattista Valli.
Photo: Jim...November 15, 2007Where: At the 7th on Sale Black-tie Gala Dinner.
What: Dress by Giambattista Valli.
Photo: Jim Spellman/2007 Jim Spellman
October 15, 2007Where: At the Martin Creed & Calvin Klein spring 2008 collection party in London, England.
What: Necklaces by Chanel and Bo... October 15, 2007Where: At the Martin Creed & Calvin Klein spring 2008 collection party in London, England.
What: Necklaces by Chanel and Boucheron; bag by Chanel. Photo: Eamonn McCormack/2007 Eamonn McCormack
October 9, 2007Where: At The Row's Launch Dinner.
Photo: Dave M. Benett/2007 Dave M. Benett
September 18, 2007Where: AtAntony Micallef's Debut Los Angeles Show Impure Idols.
Photo: Charley Gallay/2007 Getty Images
September 8, 2007Where: At the Warhol Factory, Levi's & Damien Hirst Collaborative Collection spring 2008 runway show.
What: Shoes by Alai... September 8, 2007Where: At the Warhol Factory, Levi's & Damien Hirst Collaborative Collection spring 2008 runway show.
What: Shoes by Alaia.
Photo: Jason Kempin/2007 FilmMagic
August 1, 2007Where: At the Weeds Season 3 and Californication premiere.
What: Top by American Apparel; skirt by Alaia.
Photo: ...August 1, 2007Where: At the Weeds Season 3 and Californication premiere.
What: Top by American Apparel; skirt by Alaia.
Photo: Jean-Paul Aussenard/2007 Jean-Paul Aussenard
August 1, 2007Where: At theWeeds press conference.
Photo: Vera Anderson/2007 Vera Anderson
July 14, 2007Where: At the Showtime Summer and Fall TCA's.
Photo: Eric Charbonneau
June 4, 2007Where: At the 25th Anniversary Of The Annual CFDA Fashion Awards.
What: Dress by Elizabeth & James.
Photo: Evan...June 4, 2007Where: At the 25th Anniversary Of The Annual CFDA Fashion Awards.
What: Dress by Elizabeth & James.
Photo: Evan Agostini/2007 Getty Images
May 18, 2007Where: At the Chanel Cruise Show Presented by Karl Lagerfeld.
What: Clutch by Chanel; belt by Alaïa; shoes by Balenciaga. Phot...May 18, 2007Where: At the Chanel Cruise Show Presented by Karl Lagerfeld.
What: Clutch by Chanel; belt by Alaïa; shoes by Balenciaga. Photo: Steve Granitz
May 7, 2007What: At the MET Costume Institute Benefit Gala Presents "Poiret: King Of Fashion."
What: Dress by Lily Et Cie.
&... May 7, 2007What: At the MET Costume Institute Benefit Gala Presents "Poiret: King Of Fashion."
What: Dress by Lily Et Cie.
Photo: Peter Kramer/2007 Getty Images
April 26, 2007Where: Leaving Industria Studios in New York City.
What: Bag by Prada; sunglasses by Ray Ban; shoes by Chanel.
P...April 26, 2007Where: Leaving Industria Studios in New York City.
What: Bag by Prada; sunglasses by Ray Ban; shoes by Chanel.
Photo: Marcel Thomas
March 4, 2007Where: With Ashley Olsen at the Giambattista Valli fall 2007 runway show.
What: Turban by Prada; jacket by Rick Owens.
&n... March 4, 2007Where: With Ashley Olsen at the Giambattista Valli fall 2007 runway show.
What: Turban by Prada; jacket by Rick Owens.
Photo: Lorenzo Santini
February 7, 2007Where: With Ashley Olsen at the Jenni Kayne fall 2007 runway show.
Photo: Jamie McCarthy
January 15, 2007Where: At the InStyle and Warner Bros. Golden Globe After Party.
Photo: Kevin Mazur
January 13, 2007Where: At the HBO Pre-Golden Globes Party.
Photo: Jeff Kravitz
December 13, 2006Where: At the "Dolce & Gabana Raises Awareness For The Art Of Elysium" event.
What: Corset and skirt by Dolce &... December 13, 2006Where: At the "Dolce & Gabana Raises Awareness For The Art Of Elysium" event.
What: Corset and skirt by Dolce & Gabbana; jacket by Marni. Photo: Charley Gallay/2006 Getty Images
November 16, 2006Where: With Ashley Olsen at the CFDA/VOGUE Fashion Fund Awards. Photo: Rabbani and Solimene Photography
October 3, 2006Where: With Ashley Olsen at the Dior spring 2007 runway show.
What: Dress and bag by Dior; shoes by Pierre Hardy.
September 14, 2006Where: At the Zac Posen spring 2007 runway show after party.
What: Dress by Elizabeth and James; shoes by Pierre Hardy. Photo...September 14, 2006Where: At the Zac Posen spring 2007 runway show after party.
What: Dress by Elizabeth and James; shoes by Pierre Hardy. Photo: Mat Szwajkos/2006 Getty Images
September 8, 2006Where: At the Balenciaga Paris Launch Hosted by Nicolas Ghesquiere and Howard Socol.
Photo: Rabbani and Solimene Photography/W...September 8, 2006Where: At the Balenciaga Paris Launch Hosted by Nicolas Ghesquiere and Howard Socol.
Photo: Rabbani and Solimene Photography/WireImage
August 23, 2006Where: At the Teen Vogue Global Warming Dinner.
Photo: Donato Sardella
July 13, 2006Where: At the Prada Celebrates the Los Angeles Opening of "Waist Down - Skirts by Miuccia Prada" event.
P...July 13, 2006Where: At the Prada Celebrates the Los Angeles Opening of "Waist Down - Skirts by Miuccia Prada" event.
Photo: E. Charbonneau
May 23, 2006Where: With Ashley Olsen at the Free Arts NYC's 7th Annual Art + Photography Auction Benefit.
Photo: Lawrence Lucier
May 1, 2006Where: At the "AngloMania" Costume Institute Gala in New York City.
What: Dress by Badgley Mischka; jewelry by Fred Leight... May 1, 2006Where: At the "AngloMania" Costume Institute Gala in New York City.
What: Dress by Badgley Mischka; jewelry by Fred Leighton. Photo: James Devaney
March 17, 2006Where: At the Jenni Kayne Dinner to Celebrate Her Fall Collection.
Photo: Alison Buck
March 4, 2006Where: At the Film Independent's Independent Spirit Awards.
What: Dress and ring by Chanel; shoes by Tara Subkoff. Photo: J. Ves...March 4, 2006Where: At the Film Independent's Independent Spirit Awards.
What: Dress and ring by Chanel; shoes by Tara Subkoff. Photo: J. Vespa
February 5, 2006Where: At the Badgley Mischka fall 2006 runway show.
What: Dress by Badgley Mischka. Photo: Djamilla Rosa Cochran
January 16, 2006Where: At The Weinstein Company/Glamour Golden Globes After Party.
What: Dress by Michael Kors. Photo: Jason Merritt
November 8, 2005Where: At the 9th Annual ACE Award.
What: Dress by Christian Dior. Photo: Dimitrios Kambouris
October 27, 2005Where: At Bruce Weber's "Whirligig" Show Opening.
What: Bag by Yves Saint Laurent. Photo: Jean-Paul Aussenard
September 14, 2005Where: At the Jenni Kayne spring 2006 runway show.
Photo: Jamie McCarthy
August 30, 2005Where: With Ashley Olsen at MuchMusic Studios.
Photo: George Pimentel
May 19, 2005Where: With Ashley Olsen at the DJ Sinclair Brazil Party at the Cannes Film Festival in Cannes, France.
Photo: Foc Kan
May 19, 2005Where: With Ashley Olsen at amfAR "Cinema Against AIDS" Gala Presented by Miramax Films, Palisades Pictures and Quintessen... May 19, 2005Where: With Ashley Olsen at amfAR "Cinema Against AIDS" Gala Presented by Miramax Films, Palisades Pictures and Quintessentially.
What: Dress by Stella McCartney. Photo: George Pimentel
May 2, 2005Where: With Ashley Olsen at the "Chanel" Costume Institute Gala in New York City.
Photo: James Devaney
February 6, 2005Where: At theImitation Of Christ fall 2005 runway show.
What: Dress by Imitation of Christ.
Photo: Gregory Pac...February 6, 2005Where: At theImitation Of Christ fall 2005 runway show.
What: Dress by Imitation of Christ.
Photo: Gregory Pace
September 13, 2004Where: With Ashley Olsen at the Marc Jacobs spring 2005 runway show.
Photo: Dimitrios Kambouris
September 12, 2004Where: AtCoty's 100th Anniversary Celebration in New York City. Photo: Jamie McCarthy
June 11, 2004Where: With Ashley Olsen at Campbell Hall High School Graduation.
Photo: ImageActive
June 6, 2004Where: At the NBA Finals: Pistons Vs. Lakers basketball game.
Photo: Vince Bucci/2004 Getty Images
May 4, 2004Where: With Ashley Olsen on MTV's TRL.
Photo: Mark Mainz/2004 Getty Images
May 1, 2004Where: At the New York Minute premier.
Photo: Gregg DeGuire
April 29, 2004Where: With Ashley Olsen at Mary-Kate Olsen and Ashley Olsen Honored with a Star on the Hollywood Walk of Fame for Their Achieveme... April 29, 2004Where: With Ashley Olsen at Mary-Kate Olsen and Ashley Olsen Honored with a Star on the Hollywood Walk of Fame for Their Achievements in Television.
Photo: Gregg DeGuire
February 26, 2004Where: With Ashley Olsen at the Starsky & Hutch premiere,
Photo: SGranitz
December 2, 2003Where: At the Women In Entertainment Power 100 Breakfast. Photo: Lester Cohen
November 26, 2003Where: At the Lakers vs. Wizards basketball game in Los Angeles, California.
Photo: Vince Bucci/2003 Getty Imag...November 26, 2003Where: At the Lakers vs. Wizards basketball game in Los Angeles, California.
Photo: Vince Bucci/2003 Getty Images
October 6, 2003Where: With Ashley Olsen on location of New York Minute in New York City. Photo: Bill Davila
June 18, 2003Where: With Ashley Olsen at the Charlie's Angels 2 Full Throttle premiere.
What: Dress by Zandra Rhodes.
... June 18, 2003Where: With Ashley Olsen at the Charlie's Angels 2 Full Throttle premiere.
What: Dress by Zandra Rhodes.
Photo: Albert L. Ortega
August 28, 2003Where: With Ashley Olsen at the MTV Video Music Awards.
Photo: Theo Wargo
December 3, 2002Where: With Ashley Olsen at The Hollywood Reporter's Annual Women in Entertainment: Power 100 Breakfast. Photo: Jean-Paul Ausse...December 3, 2002Where: With Ashley Olsen at The Hollywood Reporter's Annual Women in Entertainment: Power 100 Breakfast. Photo: Jean-Paul Aussenard/WireImage
August 29, 2002Where: With Ashley Olsen at the MTV Video Music Awards. Photo: Kevin Kane
July 22, 2002Where: With Ashley Olsen at the Austin Powers In Goldmember premiere.
Photo: Gregg DeGuire
March 24, 2002Where: With Ashley Olsen at the Vanity Fair Oscar Party Hosted by Graydon Carter.
Photo: Gregg DeGuire
May 17, 2002Where: With Ashley Olsen at the Daytime Emmy Awards.
Photo: Theo Wargo
November 11, 2001Where: With Ashley Olsen at Bogart Backstage On Tour for a Cure.
Photo: Jeffrey Mayer/Jeffrey Mayer 2001
July 26, 2001Where: With Ashley Olsen at the Rush Hour 2 premiere in Los Angeles, California.
Photo: SGranitz
July 23, 2001Where: With Ashley Olsen at N'SYNC And Jive Records Host A Record Release Party For Their New Album Celebrity.Photo: SGranitz
July 14, 2001Where: With Ashley Olsen at FOX Family Summer TCA. Photo: Barbara Binstein/NGI/Getty Images
December 15, 1999Where: With Ashley Olsen at the Anna and the King premiere in Los Angeles, California.
Photo: Jim Smeal/WireImage
January 17, 1998Where: At the Release of Self Titled Book Series. Photo: Ron Galella
Circa 1990sWhere: With Ashley Olsen.
Photo: Time & Life Pictures/Time & Life Pictures
April 25, 1997Where: With Ashley Olsen at the Audrey Hepburn Hollywood for Children Family Film Festival. Photo: Jim Spellman
Circa 1997Where: With Ashley Olsen.
Photo: Don Parks
September 13, 1994Where: With Ashley Olsen at the ABC Fall Season Kick Off Cocktail Reception. Photo: Jim Smeal
July 11, 1993Where: With Ashley Olsen at the Video Software Dealers Association Convention. Photo: Barry King