All decked out in a pink chiffon dress, Lindsay Lohan celebrated her twenty-second birthday (which was Wednesday) with a prom-themed party at Teddy’s in Hollywood’s Roosevelt Hotel on Thursday.

Samantha Ronson, Joel and Benji Madden, David Spade, Audina Partridge and Sean Stewart were on-hand to help LiLo celebrate the milestone, E! reports. DJ AM provided the music for the event.