The pop star announced the title of her seventh studio set via Twitter and posted the cover art, which, much like the artwork for her "Hold It Against Me Single," is a sexy closeup shot of Spears against a neutral background.

What does Brad Pitt's brother do, and do good looks run in the family? Who is Warren Beatty's famous sister? For some, entertainment runs in the family, while other siblings to the stars have managed to remain out of the spotlight.