#6 Britney Spears and Kevin Federline
Britney was a huge pop superstar at the end of the last millennium, but while she was very lucky when it comes to her career, she suffered when it comes to love. She fell for one of her dancers in 2004 and married him just three months after. Choosing Kevin Federline will prove to be a very bad decision. Not only the couple divorced in 2006, but they were fighting about their kids and her money long afterwards, which lead the famous singer to a nervous breakdown. Britney even visited psychiatric hospital and shaved her head.