It’s all over for Season 4 of The Hills… and the cast gathered at a party at ‘Tavern On The Green’ in NYC last night to celebrate. Here are several pictures!

Photos via SplashNews

Tags: Brody Jenner, Event Photos, Heidi Montag, Holly Montag, Lauren Bosworth, Lauren Conrad, Spencer Pratt, Stephanie Pratt, Whitney Port

Heidi Montag’s sister Holly was spotted out on a date with a “mystery” man last night. They went to the Apple Lounge, and Holly left the date holding a long-stemmed rose and had a huge smile on her face.

Photos via PacificCoastNews

Tags: gossip, Holly Montag