Joe Jonas and Demi Lovato `call it quits`

Washington: Joe Jonas and Demi Lovato have called off their relationship. A source told People that the singer, 20, and girlfriend Lovato, 17, have called it quits, but will still be hitting the road together this summer, starting July 27 in Dallas.

The pair first met on the set of Camp Rock in 2007; Lovato toured with the Jonas Brothers the following year. Jonas and Lovato went public with their relationship in March. ANI