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Saint Laurent went Hollywood last night.

The historic Palladium was turned into a circular catwalk to show off their fall/winter collection (for both men and women). Think: super-skinny pants, sequined motorcycle jackets and fringe-covered capes. Not only was the place filled with celebrities like Lady Gaga and Justin Bieber, but the show also ended in a full-blown after-party complete with a concert, which included performances by front-row guests Beck and Joan Jett. To say this was a spectacle would be an understatement.

Celebrity stylist Sophie Lopez was on the inside—read on to hear all about her experience, firsthand.