After causing a fan frenzy with their surprise duet [1] back in July, Joe Jonas [2] and Demi Lovato [3] had another yet adorable reunion in LA on Thursday. The friendly exes, who dated in 2010 [4], shared the stage once more when they performed a private concert for Marriott Reward members. While Joe's band, DNCE [5], got the crowd hyped with a few of their big hits, Demi completely embodied the word "confident" by rocking a sexy suede dress [6]. The cutest moment had to be when the two embraced in a hug during a special rendition of DNCE's "Toothbrush." If you need us, we'll just be playing the Camp Rock soundtrack on repeat.