It's a "Camp Rock" reunion for Demi Lovato and The Jonas Brothers.
The "Heart Attack" singer joined the trio on stage at the opening concert for the Jonas20 anniversary tour, at New Jersey's MetLife Stadium on Sunday, Aug. 10.
The Jonas Brothers brought out Lovato, 32, during their hometown concert to perform tracks from their hit 2008 Disney Channel film "Camp Rock," as well as its 2010 sequel. Lovato played Mitchie Torres in the movie, while Joe, Kevin and Nick Jonas played Connect 3, a fictional band based on themselves.
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Joe Jonas, 35, whom Lovato briefly dated in 2010, performed "Gotta Find You" before the band brought out the actress to sing "This Is Me" and "Wouldn't Change a Thing."
