Teen star Demi Lovato dropped out of the international concert tour she was on with the Jonas Brothers and entered a treatment center to get help for ``emotional and physical issues,'' TMZ.com reports.
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Demi Lovato enters treatment center
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Demi Lovato heads back to treatment center, but as a speaker!
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Joe Jonas taken to Los Angeles emergency room
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Demi Lovato: ``I am not dating Joe Jonas''
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X Factor USA's Demi Lovato reveals she 'handling' father's death
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Timbaland to collaborate with pop star Demi Lovato
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Demi Lovato goes gold & named as 8th best international star
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The Jonas Brothers: did band cancel show in Mexico over security issues?
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Demi Lovato leaves Sonny with a Chance
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Jesse James leaves rehab
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Demi Lovato performs ``Make a Wave'' on Extreme Makeover Home Edition
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Demi Lovato on 'Dancing with the Stars' tonight!
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Demi Lovato - Demi Lovato trashes dressing rooms
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Demi Lovato gets hair pulled in Venezuela
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Britney Spears is mean and Demi Lovato is a brat:
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Demi Moore treated for anorexia:
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John Mayer cancels US tour over vocal cord injury