Britney Spears Preps for Vegas Residency in ‘I Am Britney Jean’ Documentary Trailer [VIDEO]
Britney Spears has said that 'Chaotic,' the reality trainwreck, er, show in which she starred with her ex-husband and baby daddy Kevin Federline, was the biggest mistake of her career. But Brit Brit has not soured on the documentary format or on letting the cameras into her life.