Kristin Cavallari's Debut On 'The Hills' -- Watch A Preview Here!

Season finale airs Sunday at 8 p.m., just before the MTV Movie Awards. Kristin Cavallari takes her seat at Heidi and Spencer's wedding on "The Hills" Photo: MTV Now you can see for yourself — Kristin Cavallari is heading to "The Hills"! A new video clip from Sunday night's season finale of "The Hills" shows Cavallari's debut on the series. Rumors of her involvement had been circulating since it was announced that Lauren Conrad will be leaving the show, and just weeks ago, it was confirmed that Cavallari will have a starring role in season six. Both Cavallari and Conrad made their MTV debuts on the series "Laguna Beach," which spawned "The Hills." In the clip, we see Cavallari entering into the Speidi wedding to an ominous music cue. As she walks down the aisle, we can see the rest of "The Hills" cast in attendance: Brody, Lo, Justin Bobby, Audrina, the scandalous Stacie the Bartender, and even a Perez Hilton sighting in the back row. "The Hills" ... (link)