Pop singer Demi Lovato is newly single after breaking up with Wilmer Valderrama, who she dated for six years, which in celebrity time is about two decades. She's currently on tour with Nick Jonas, whose brother, Joe Jonas (duh), she briefly dated in 2010. She and Joe have remained friends, and their fans really, really want them to date again. So when she commented about how hot Joe's arms looked in an Instagram picture, it did not go unnoticed, to put it mildly.

Last night in San Diego. One more show left for the U.S. Tour! Los Angeles tomorrow!

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