The all-American label celebrated the major milestone with a runway presentation and dinner, hosting the likes of Blake Lively and Anne Hathaway, who both suited up for the occasion. Other famous guests included Jessica Chastain, Priyanka Chopra and her beau Nick Jonas, and Kanye West, who continues to rock socks and slides (it's a look). But don't just take our word for it, keep scrolling to see all the star attendees.
The celebrity appearances at New York fashion week so far have been epic. From Cardi B at Tom Ford to Kate Moss sitting front row at Longchamp, designers have been flooded with support from their famous pals, but nothing quite compares to the star-studded turn out at Ralph Lauren's 50th anniversary show.