Singer Joe Jonas surprised fans this week by joining his brother Nick and Demi Lovato on stage on their Future Now tour.
Demi and Joe then recreated their classic "Gotta Find You" duet from Disney Channel's hit 2008 movie "Camp Rock".
Joe shared an Instagram photo of himself hugging Demi on stage, saying: "Sharing the stage with @nickjonas and @ddlovato in DC last night! Surprising Demi with Gotta find you was something I will never forget!
"Thanks for having me guys! Amazing show you two put on. Proud to have such talented wonderful people in my life."
Demi commented on Joe's post: "Love you."
Demi and Joe dated for a few months in 2010, three years after co-starring in "Camp Rock.
