Updated: 06 January 2014 18:30 | By Colleen Last
Ke$ha and other stars who've been to rehab

Drew Barrymore

Drew Barrymore (© AP)
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Drew Barrymore had a notoriously difficult childhood. After finding fame with ET when she was six, she began smoking at nine and moved on to alcohol and cocaine. She entered rehab at 13 and returned a year later after a suicide attempt. She's been clean since then.

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