Joe Jonas wants Taylor Swift back, we can't wait for the songs about this one

Listen, normally, we'd say that Joe Jonas better stay away from our girl Taylor Swift after he dumped her via an 27-second phone call way back in the day. But she's a changed woman now, after relationships with mature older men like John Mayer Jake Gyllenhaal.

Plus, anything that gives Swift new fodder for angry songs is A+ in our book.

Not to mention, this hookup could inspire songs from not only Taylor, but Jonas, his brothers, Demi Lovato... the list goes on.

According to Us, Jonas is pining for Swift once again. "He wants her back," a source tells the mag. "He wants to show her he's a changed man and would love to see what's possible between them." Apparently they're "testing the waters" -- he even showed up at a recent concert of hers in L.A.

We won't even make the comment about how his pursuit of Swifty is nicely timed with the launch of his solo career. Oops... we just did.