By A Mystery Man Writer
When actress and singer Demi Lovato recently overdosed, it was perhaps the most serious incident she has had with her years-long battle with addiction.
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Demi Lovato: From “Sober” Confession to Overdose
Demi Lovato, Angelina Jolie, and More Stars' Shocking Drug
Demi Lovato Ups and Downs
Demi Lovato released from hospital
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