The entire cast and crew -- minus Heidi Montag and Spencer Pratt .
Lauren Conrad, Kristin Cavallari, Brody Jenner, Stephanie Pratt, Josh Hansen, Frankie Delgado, Whitney Port, Kelly Cutrone, Lo (Lauren Bosworth), Audrina Patridge, Scott Hochstadt,etc.
It was said that... "Spencer disguised himself as an old man in an attempt to crash the shindig. While he posed with fans and even offered to buy drinks for everyone at the pool bar (his card was declined), the "Hills" villain was eventually escorted from the hotel." -OMG!