The Jonas Brothers  and Demi Lovato  launched San Francisco's Shoreline Amphitheatre into a "Camp Rock 2" frenzy on Saturday (Sept. 18) -- with the help of "Camp Rock" friends like Mdot and J, of course -- and Billboard.com was on hand to capture the action.
The Brothers and Lovato kicked off their tour Aug. 7 and wrap on Nov. 8, hot on the heels of the second "Camp Rock" movie. Back in August, Billboard.com got an exclusive backstage look  at the tour's opening night near Chicago, led by none other than Joe Jonas.
Video: Billboard.com's backstage tour with Joe Jonas
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