Audrina Patridge valets her white Mercedes G-Wagen before heading into Madame Royale, a Moulin Rouge-themed lounge in Hollywood.
Her "Hills" co-stars, Stephanie Pratt and Lauren "Lo" Bosworth, also came out to get their party on.
Lo looked gorgeous in head-to-toe shades of gray, while Audrina rocked a sheer black tank and ripped jeans.
Although Steph told Us Weekly that her bulimia was brought on by skinny girls on "The Hills" like Patridge, the women seem pretty chummy. Audrina supposedly advised Pratt to wear a shirt over her bikini while filming in Hawaii.
Looks like someone bought the "Sorority Row" star a single red rose. Wonder if her friends were jealous?