Demi Lovato joined the Jonas Brothers on stage, performing iconic ‘Camp Rock’ songs during their tour kickoff at MetLife ...

The pair sang "This Is Me" and "Wouldn't Change a Thing," 17 years after the Disney Channel original movie was released.

But to make it more special, they surprised their fans with some special guests throughout the show, including Demi Lovato.

The Jonas Brothers' tour kickoff featured a surprise reunion with Demi Lovato, reigniting nostalgia for Camp Rock fans. Learn ...

On Sunday, Demi Lovato joined the Jonas Brothers on stage in New Jersey for the opening night of the JONAS20 tour, dazzling ...

Demi Lovato surprises fans by joining the Jonas Brothers at the Jonas20 anniversary tour opener for a “Camp Rock” reunion.

Lovato made a surprise appearance at the JoBros concert in East Rutherford, New Jersey, on Sunday. And they made fans' dreams ...

Demi Lovato surprised fans by joining the Jonas Brothers during their first show on the "Jonas20: Greetings From Your ...

Demi Lovato wasn't the only Jonas Brothers' guest star Sunday: Members of Switchfoot, Dean Lewis, Jesse McCartney and ...

Demi Lovato sent fans into a frenzy by reuniting with the Jonas Brothers on stage at their JONAS20 tour in East Rutherford, ...

One-time North Texas residents Demi Lovato and the Jonas Brothers reunited on stage this weekend for a duet that anyone born ...

Demi Lovato fans were thrilled to see her perform a Camp Rock medley on stage with the Jonas Brothers; some think it's a hint ...