Posted March 23, 200619 yr Britney and Kevin celebrate Kevin's 28th birthday in Las Vegas. Britney Spears and hubby Kevin Federline celebrated K-Fed's birthday Tuesday night at Tao Restaurant in Las Vegas. TMZ obtained video, showing the craziness surrounding the latest Britney sighting. There were eight -- count them, eight -- security guards at the ready as the couple went out on the town. Watch the very short video at TMZ.com. http://us.video.aol.com/video.index.adp?mo...&pmmsid=1481281
