The newest Hills castmember, Kristin Cavallari, will be appearing on It's On With Alexa Chung tomorrow afternoon at 12pm ET. You can post questions for her on It's On With Alexa Chung's facebook page. Be sure to tune in!

In related news, The Inside Track is reporting that Ms. Cavallari will not be making her scheduled appearance at Shrine at MGM Grand at Foxwoods next weekend.