KEVIN FEDERLINE is hoping his few fans will want to join him for his double birthday celebrations - by offering them the chance to win tickets online. The dancer-turned-rapper will be giving away VIP tickets to his parties in Los Angeles and Las Vegas on 21 and 24 March (07) to fans who use his new search engine website Each day a handful of winning times are chosen at random and the person using the site at that time will win a prize and the chance to enter a contest to become one of 10 special guests, who will celebrate with Britney Spears' estranged husband. Federline turns 29 on 21 March (07).