Photos by Cody Boor / Hard Rock Hotel & Casino
At the newly opened Vanity nightclub: Jason Giambi celebrated his 39th birthday with friends. A.J. McLean of the Backstreet Boys along with his fiancé Rochelle Karidis were also seen celebrating their recent engagement at the club. Giambi, a co-owner of the club, presented McLean and Karidis with a bottle of champagne to congratulate them on their engagement.