Hey, just because you are a celebrity, doesn’t mean you aren’t vulnerable! Or, in this case, capable of a total mental breakdown. Unfortunately for her, we’ve all seen the epic Britney Spears footage of her shaving her head and slaying cars with umbrellas. But, she is by no means the only famous person to have a breakdown right in front of the public’s prying eyes. We’re also shifting the focus onto Mel Gibson, Kanye West, Sinead O’Connor, and Demi Lovato.