Probably the youngest star to go to rehab, Drew Barrymore had her first drink at nine, marijuana at 10, and cocaine at 12. When she was just a teenager, her mother had an intervention and brought her to the ASAP Family Treatment Center. Though Barrymore isn't sober now, she's not the party child she once was. "I'm not (sober) and I don't claim to be—quite the opposite. I've tried to find the balance. I hope it's balanced." [Young Hollywood]