Demi Lovato kicked off her summer tour of the US in New Jersey on Friday night, and fans lapped up a cover of Chris Brown's 'Turn Up The Music'.
The song has been a global smash for Breezy, and was a No. 1 hit in the UK in March.
Demi's tour is being worked around her commitments on The X Factor USA, which sees her sit alongside Simon Cowell, Britney Spears and LA Reid.
She said on Twitter yesterday: "WOW!!! [The fans] blew me away last night. Doing it all again tonight at Star Pavilion in Hershey, PA."
She has recently been linked to One Direction heart-throb Niall Horan, but insisted during a radio appearance this week that they are just friends.
After joking that she'd never heard of him, she clarified: "Niall is a friend of mine. I do know who he is. We’re just friends and he’s awesome. He’s cool."
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