What Have Been the Biggest Celeb Blow Ups?

Britney Spears 1 of 11

Long after Britney Spears came onto the scene as an almost virginal pop princess and long before her recent resurgence on 'X-Factor,' Britney had a meltdown somewhere around 2007. It was a long time coming, apparently, sparked by her breakup with Justin Timberlake and some possible drug use.

We first really caught wind of it when she suddenly shaved off all of her long blond locks, leaving her head almost as smooth as a baby's bottom. A few months later, she had a run-in with a paparazzo, attacking him with an umbrella (you did see those pictures, right?). She claimed she was researching a movie role. Yeah, Britney, and what movie was that?