TVguide.com gets an account from last night’s The Hills Season 3 Finale Party.

Photo: Audrina Patridge and Lauren Conrad by Chris Polk/MTV

At a private hilltop location in Los Angeles, The Hills cast and their fans on Monday celebrated the Season 3 finale with a blow-out party that featured a performance by Usher, a screening of the season closer and cocktails on a lawn with sweeping views of the city. Despite the unusually chilly temps, the stars turned out in their hottest threads, including frocks from Lauren’s line for her and Lo. The conspicuous absences of Heidi and Spencer (rumored to be sequestered elsewhere) were the big buzz, but the cast stayed mum on why the pair didn’t show. While The Hills cast has seen its share of drama, there’s only more to be had in Season 4, especially as these twentysomethings get more serious about careers, relationships and, of course, feuds. As Lauren, Lo, Audrina and others arrived on the scene, TVGuide.com caught up with them to get a preview of next season. Here’s what they had to say about: CLICK HERE TO READ MORE