Britney Spears and BLONDE Demi Lovato Celebrate X Factor Judge LA Reid’s Birthday With Cake

Now that’s a pretty sweet treat. Britney Spears and Demi Lovato teamed up to give their X Factor cohost LA Reid an extended celebration, by enjoying some cake—and a song—on the day after his actual birthday. And that only added to the surprise. MORE: Why Is Simon Cowell Skipping X Factor Auditions in Kansas? While Simon Cowell is out with bronchitis (and Louis Walsh is subbing), mega producer Reid kicked off the fun with his fellow X Factor judges Spears and Lovato in Kansas City. The “Hold It Against Me” crooner even surprised Reid with a cake, singing to him while she was at it. “LA was completely not expecting it,” a source on set told E! News. “He was trying to keep his birthday kind of a secret but at the end of their break, Britney surprised LA with a huge chocolate cake while singing ‘Happy Birthday.’ It was cute. Demi drew him a picture saying ‘LA & Demi – BFF — Besties.’” A source close to Spears said, “It was totally unplanned for her to sing. We were all surprised!” Now that’s a great birthday! Link here for new blonde DEMI!! www.eonline.com