In further proof that exes can be friendly, Demi Lovato made a surprise appearance on Sunday (Aug. 10) at the Jonas Brothers‘ kick-off of their 20th anniversary tour at MetLife Stadium in East Rutherford, N.J., teaming up with former boyfriend Joe Jonas for a trip down memory lane.

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The former couple, who played spoiled Connect 3 singer Shane Gray (Jonas) and shy vocalist Mitchie Torres (Lovato) in the Disney Camp Rock movies nearly 20 years ago reconnected for the first time in years at the JONAS20 show with Joe bringing

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