Alyson Stoner and Demi Lovato have made up, but decades earlier Stoner describes a tumultuous "Camp Rock" tour because of Lovato's substance abuse.

"We’ve been through so much together," the singer said of her fellow Disney Channel alums. "It was really, really great to spend time with them."

Reflecting on her recent surprise appearance at a Jonas Brothers' concert, the 32-year-old singer called the performance both 'special' and 'healing.'