Rose Byrne and Allison Williams Partied Together

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Photo: BFA; Getty; Courtesy of Nike

Happy first week of summer. Let the pool-float parade commence!

Chanel hosted a dinner at the New York Public Library where we learned that celebrities are deeply divided over the choker trend. And speaking of trends, Nylon out-Nylon-ed itself at its party celebrating the June-July “Music” issue. In attendance were White Girl Rosé, pizza in custom boxes, and, yes, the aforementioned pool floats. Ally Hilfiger and Arianna Huffington were inexplicably in the same room at one point. Kelly Rowland and Michael Jordan celebrated shoes. Chanel Iman got down to Wyclef Jean. Drew Barrymore addressed her guests from on high (literally from a balcony) in the Hamptons. Click ahead to see Olivia Palermo, Rachel Zoe, and Amandla Stenberg.

Rose Byrne and Allison Williams Partied Together