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

The Jonas Brothers welcomed Joe Jonas’ ex-girlfriend, Demi Lovato, on stage for a surprise performance at their first concert ...

The Jonas Brothers and Demi Lovato delighted fans on Sunday night when Lovato made a surprise appearance at the boy band’s ...

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

Demi Lovato made a surprise appearance at the kickoff to the Jonas Brothers ‘ 20th anniversary tour at MetLife Stadium in ...

Joe Jonas and Demi Lovato performed 'Camp Rock' favorites during the Jonas Brothers' 20th anniversary tour at MetLife Stadium ...

The Jonas Brothers opened the Jonas20 tour with Joe Jonas reuniting with Demi Lovato for the first "Camp Rock" performances ...

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

The Jonas Brothers already had fans feeling nostalgic with their new tour and then they raised those stakes with their first ...

- Dean Lewis, the Australian pop balladeer of “Be Alright” fame, trotted out mid-set to perform the new “Greetings” tune ...

Demi Lovato and Joe Jonas reunited on stage during the Jonas Brothers’ 20th anniversary tour, performing Camp Rock hits after ...

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 ...