The Pierre hotel in NYC was the place to be seen last night. Lanvin for H&M hosted a magical haute couture show — Fab supported one of the 25 looks for charity — and as you can imagine, the night had no shortage of fun! Of course, Alber Elbaz was on hand to celebrate, as were Emma Roberts and a gaggle of gorgeous models like Dree Hemingway. Anna Dello Russo even made an appearance on the catwalk! The entire production was filled with energy, gorgeous chandeliers, peonies galore, and girls dressed as French maids just standing around. The front row was filled with Alexander Wang, Tory Burch, Sophia Coppola, and the likes. Step inside for all the fun moments you don't want to miss!