The Jonas Brothers were determined to make the opening night of the band’s Jonas20: Greetings from Your Hometown Tour one to remember.

The band — consisting of brothers Joe, Nick and Kevin Jonas — kicked off their 20th anniversary tour on Sunday at MetLife Stadium in their home state of New Jersey. But to make it more special, they surprised their fans with some special guests throughout the show, including Demi Lovato .

The Jonas Brothers and Lovato previously starred in the 2008 Disney Channel Original Movie, Camp Rock , which saw Joe and Lovato play love interests onscreen as well as have a real-life romance in 2010. They also reprised their characters in the sequel, Camp Rock 2: The Final Jam .

The Jonas Brothers were determined to make the opening night of the band’s Jo

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