Demi Lovato took 'American Idol' by storm last night (March 15) with a rocking rendition of her 'Unbroken' album track 'Give Your Heart a Break.' Demi previously performed on 'Idol' with ex-boyfriend and former tourmate Joe Jonas back in 2010.
The 19-year-old's performance last night surely taught the show's contestants a thing or two about bringing the house down! What do you think of Demi's 'Idol' appearance? Tweet us your thoughts @aolmusic!
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