As Usher's increasingly messy custody battle with ex-wife Tameka Foster has illustrated, celebrities don't always play nice when fighting for the kids.
But Usher and his ex aren't the first famous pair to duke it out in public. Click through the slides below to test your knowledge of some of the most notorious celebrity custody battles, from the popstar who lost custody of her kids, to the famed director who was slammed by a judge.
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