Demi Lovato Triumphs in First Post-Rehab Performance

Entertainment Aug. 19, 2011 AT 10:50AM

Demi Lovato brought the house down with her tender rendition of "Skyscraper" at Sunday's Do Something Awards, which aired Thursday on VH1.

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It was the first time the 18-year-old singer performed in front of a live audience since checking into rehab last October.

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"Thank you so much for all your sweet comments on my Do Something Awards performance!" a proud Lovato told her 4 million Twitter followers Thursday. "Love you all!"

Lovato's third studio album, Unbroken, is out September 20.

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