It looks like R&B superstar Usher might have a problem on his hands.

According to TMZ, a sex tape featuring the singer and his ex-wife, Tameka Foster, is being shopped around Hollywood. TMZ claims they have seen a snippet of the video and there's no doubt it's Usher.

Sources close to the singer speculate this could be one of the several items stolen from Usher's car when it was broken into in December 2009. The singer reported more than $1 million worth of items stolen, including two laptop computers.

There's been no comment from Usher's rep regarding a possible tape.