Kristin Cavallari hit the red carpet for the premiere of Something Borrowed in LA last night. She showed off a pair of pink wedges that she designed for Shoe Dazzle, but they weren't the only new accessory she was flaunting. Kristin flashed her gorgeous diamond engagement ring at the event, after being proposed to by her boyfriend, Jay Cutler, last week. The reality star joined the stars of the movie who also have bling on their fingers since Ginnifer Goodwin and Kate Hudson are also both engaged. We talked to Kristin about the exciting news, and she shared her surprise at all the planning that has to be done, though her mom apparently got her started by sending a book about wedding prep. Kristin and Jay might be getting married in Chicago, but the nuptials could have to wait until next Spring due to football season.