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Demi Lovato Stay Strong Premiere

FIRST WATCH: Trailer For MTV Documentary 'Demi Lovato: Stay Strong'

The Huffington Post | Marissa Piazzola | Posted 02.22.2012 | Home

After experiencing a breakdown back in 2010, "Skyscraper" songstress Demi Lovato entered a rehab facility -- and she allowed MTV News cameras to follo...