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.”

The Jonas Brothers have had multiple high-profile relationships over the years. In 2008, Nick Jonas dated Selena Gomez, while Joe Jonas dated Taylor Swift. Gomez recently reminisced about these relationships on an episode of the Therapuss podcast with Jake Shane on August 7.

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,