Who do you think Joe Jonas is apologizing for amongst his exes on his new song, "I am Sorry" ?

Joe Jonas says his new song, “I’m Sorry,” is about one of his relationships. Is he finally apologizing to Demi Lovato, or is it an ode to one of his other celebrity girlfriends?

“‘I’m Sorry’ is really honest,” Joe, told E! Online’s Marc Malkin June 16. “It’s saying, I screwed up. I didn’t cheat on the person, but just I messed up and I wanted the person back. I’m just putting it all on the table saying, ‘I’m sorry. I wish I could have you back.’”

Joe has famously fallen out of love just as quickly as he falls in. The notorious play boy says he’s about to apologize to one of his sweethearts in his new song, “I’m Sorry” — but will it be about the one girl he hurt the most?

Who do you think is it? Is it :

1. Taylor Swift--Joe and Taylor broke up in 2008, but things turned sour when Taylor claim Joe ended it with her — in a 27 second phone call! Joe claims he tried to reach out to her following this, but she did not take his calls. Maybe Taylor is finally ready to speak now! :)

2. Demi Lovato - The two were long time friends who started dating in early 2010 but broke up in May of that year. Things slowly began to spiral out of control when Joe began dating Ashley and brought her on tour with him , a tour Demi was also on! Demi, subsequently, suffered from a breakdown, quit the tour and shipped off to treatment in Chicago for “emotional and physical issues.” Although Joe didn’t technically do anything wrong, it’s widely presumed he played some role in Demi’s problems.

Of the two, I think he owes Demi Lovato an apology! He is so insensitive when he brought his current GF where he knows his ex was also in that tour!

Hopefully we’ll hear “I’m Sorry” soon! But regardless, it will be on Joe’s first solo album, which is set to drop Sept. 6.

Can't wait to hear it! and analyse who the song is for :)