Till death do you part. Or maybe not. If you're a married American, you have about a 50-50 chance that your marriage will end in a divorce [source: U.S. Census Bureau]. For better or for worse, celebrities are no different from the rest of us when it comes to matters of the heart -- except there's actually one big difference: Celebrity divorces are often played out in the public eye. Protecting yourself, your family and your kids from the tumult of divorce is difficult for any couple, but when you add the media spotlight, a nasty divorce and custody battle can seem even uglier.
We've pulled five celebrity custody battles that have played out in a media circus, including everything from accusations of mental illness, substance abuse and sexually transmitted disease exposure.