15 Celebrities Who are Crazy in Real Life

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6) “Toxic” Behavior: Britney Spears

She was one of the most popular pop stars of her time, dated a teen idol, Justin Timberlake and was a tabloid darling. But starting around 2007, Spears began an infamous downward spiral. At first, her odd behavior was dismissed as self-serving, attention-seeking stunts. But after a while, her increasingly bizarre behavior began to worry her family members and fans.

The antics began shortly after Spears divorced her then-husband Kevin Federline. The singer began partying heavily and — in one of her more bizarre moments — Spears shaved her head bald in February 2007. Unfortunately, it was all downhill from there. In January 2008, Spears locked herself in a bathroom with her youngest son, Jayden, and refused to give him to her ex-husband. After four hours, she was taken from her house, strapped to a gurney, to a hospital where she was evaluated and reportedly diagnosed as being bipolar. Her family also claimed that Spears’ friend Sam Lufti had been keeping her drugged up in order to control her. He claimed he was just trying to help her get clean.

Fortunately, her parents were able to win legal control over Britney and under their guidance, they successfully brought the pop star back under control. Today, the singer tours regularly and was a judge on the 2012 season of “The X Factor,” for which she was paid a whopping $15 million.