The Saks champagne tower is to fashion week what the Rockefeller Center Christmas tree is to the holidays. 

Last night, East 50th Street was aflutter with a long line of stylish guests ready to strut their stuff and let loose at the annual, much beloved L'Avenue at Saks soirée. 

Saks CEO Marc Metrick and Golden Globe and Emmy Award-winning actress Sarah Paulson hosted the star-studded party to celebrate New York Fashion Week and the launch of Saks’ fall campaign.

Everyone from Kumail Nanjiani, Nicky Hilton, Alan Cumming, Wes Gordon, Amelia Hamlin and more enjoyed the chic setting, which featured a DJ set by Paris Hilton, a live performance by Kim Petras, too many disco balls to count, Saks branded mini burgers boxes, boozy milkshakes, and but of course, a five-foot-tall champagne tower.

Curious what you missed? 

Click through for an inside look at the flashy festivities!

[Images Courtesy of BFA for Saks Fifth Avenue]