Post-holidays and pre-awards season, the partying officially started up again with the People’s Choice Awards on Wednesday. Then, already prepping for Sunday night’s Golden Globes, W magazine and Dom Pérignon hosted Rooney Mara, Kirsten Dunst, Cate Blanchett, and Alicia Vikander with a who’s who of Hollywood in L.A. Meanwhile, in London, the men’s shows kicked off with a celebration by the British Fashion Council, where will.i.am mingled with the week’s usual muse, Judy Blame. Click through the slideshow to see those highlights and more from this week’s parties, including Dita von Teese, Marilyn Manson, Susan Sarandon, Helen Mirren in a fur stole, and Courtney Love with her new beau.