Oops! Britney Spears did it again. Less than six months after annulling her 55-hour marriage to childhood friend Jason Alexander, the pop tart's gotten engaged. This time, the lucky fiancé is her 26-year-old dancer-boyfriend Kevin Federline. "I can confirm that yes, she is engaged," Brit's Jive Records rep, Sonia Muckle, told People. No word yet on the couple's wedding date. Oh, but don't forget Federline shares a 2-year-old daughter with ex-Moesha co-star Shar Jackson, who's also expecting his second child in July. So perhaps if they hold the ceremony till after his baby's birth, Kev's whole family can sit on the groom's side!