This is how happy Kristin Cavallari
was when she arrived at Koi in West Hollywood Friday night to have dinner with her mom, and we don't blame her! Now that she's replaced Lauren Conrad
in The Hills
she can look forward to becoming one of Hollywood's hottest young stars. Also, it was rumored that Lauren made $75000 per episode so if Kristin can get the same deal she can be very happy with that new salary of hers!