Singer, songwriter and actress Demi Lovato's career began on Barney & Friends and started to gather steam with her roles on Disney Channel shows, including As The Bell Rings, Sonny With A Chance and Camp Rock. Her 2015 album Confident yielded the hit "Cool For The Summer." Nick Jonas also began acting at a young age before storming the pop charts as part of The Jonas Brothers. He recently released his third full-length solo album, Last Year Was Complicated. Lovato and Jonas have bonded over their shared experiences as child stars and are now embarking on a joint tour, which stops in San Jose this week.