On an appearance on The Ellen Show, the host inquired about the song’s subject. “There’s supposedly a song about Nick Jonas,” Ellen stated to Demi, to which the singer said, “Ya know, something that I will always keep to myself is who I write my songs about.”

Just when we thought the song of the summer was still up for debate, Joe Jonas and Demi Lovato went ahead and handed us a curveball straight from 2008. On Sunday night at MetLife Stadium, the former Disney costars—and one-time real-life couple—reunited to perform Camp Rock classics during the Jonas Brothers’s JONAS20 tour opening date,