Pop singer Britney Spears has married her fiance, dancer Kevin Federline in a surprise ceremony yesterday at a private home in Los Angeles, 20-30 people were invited. The 26-year-old Federline appeared in the movie “You Got Served” and performed as a backup dancer for singer Justin Timberlake, Spears’ former boyfriend. It’s the second marriage in nine months for the 22-year-old Spears. She married childhood friend Jason Alexander in January. That marriage was annulled 55 hours later.