Demi Lovato reunited with her ex Joe Jonas and his brothers to perform duets from their hit Camp Rock movies on Sunday night.
The Heart Attack singer and Joe, Kevin and Nick Jonas found fame by starring in the Disney Channel movies Camp Rock and Camp Rock 2: The Final Jam in 2008 and 2010.
Demi and Joe, who played the lead characters and love interests Mitchie Torres and Shane Gray, dated briefly in 2010, the same year she joined them on tour.
On Sunday, the exes sent fans wild by reuniting on stage to sing This Is Me and Wouldn't Change A Thing from the Camp Rock films.
At the end of their mini reunion, Joe noted they hadn't performed the track for "almost 10 years", and Demi insisted it "might have been longer."
Alongside a video of her and Joe singing to each other, Demi wrote on Instagram, "Thanks for having me @jonasbrothers."
A few hours earlier, the former co-stars teased their upcoming duet by lip syncing to Wouldn't Change A Thing as they walked down a corridor at the MetLife Stadium in New Jersey, the brothers' hometown.
She also posted a video of her and Joe lip syncing to fellow Disney star Debby Ryan's quote, "I went into the Disney Channel building and I sat down with the president of the Disney Channel and I said, 'I want to make history' and that's what this is."
The Cool for the Summer hitmaker captioned the humorous clip, "For the history books @joejonas."
The star's husband, Jordan Lutes, known professionally as Jutes, showed his support in the comments by leaving clapping and laughing emojis. He also posted a video of Demi walking out onto the stage as he waited in the wings, and he wrote, "Couldn't be more proud... I love u sooo much baby."
Sunday night's show kicked off the Jonas Brothers' 20th anniversary tour.