AceShowbiz -

Previously only a whisper, the news about Lauren Conrad being replaced by "Laguna Beach" rival, Kristin Cavallari, turns out to be true. After the 5th season of "The Hills" which is airing on MTV now, Conrad officially signs off as the leading cast and that's when Cavallari steps in.

To EW, Cavallari confirmed that she is going to take over the spotlight starting the 5th season finale that airs May 31. Her first appearance will be on the wedding of Heidi Montag and Spencer Pratt where she got a hold of the bouquet thrown by Heidi. Two things that the 22-year-old emphasized are the fact that it's merely a TV show and that she is way "more" than Lauren Conrad.

"Its a TV show," Cavallari said. "I'm not going into it like, 'I'm going to make great friendships with these people.' It's work! And drama sells. I think that's why they're bringing me in, because I know what works."

Regarding her old rift with Conrad and whether or not she can live up the show, Cavallari commented "I'm a completely different person than Lauren. I have a lot more energy. I'm more outgoing. I'm a little more spontaneous."

She also admitted to having no clue whether a hook up with Justin Bobby will be possible in "The Hills" or not. She said, "I have no idea...but they might try and set up situations. I'm totally cool with that. Again, it's a TV show and they need to make it entertaining."