Slide 3 of 9

Kristin Cavallari & Nick Zano

On Laguna Beach, Kristin won us over with her no-nonsense approach to dating. While BFF Jessica was constantly whining about the lack of attention from her jerky BF, Jason Wahler, Kristin was the happy-go-lucky single girl. After semi-serious flings with Matt Leinart and Brody Jenner, Kristin seemed to have found lasting love with Nick Zano. Kristin even got his initials tattooed on her wrist and moved into his Hollywood pad! But after a year together, Nick ended up dumping Kristin for his former flame, Haylie Duff (ouch!). Not that Kristin was too broken-hearted -- she threw herself a huge 21st b-day bash and has been hitting up movie premieres and fashion shows solo and smiling.