From Jawn's Juice:
Can’t Say Names: Sources say that the powers-that-be behind a new teen artist is using the exact blueprint of a current chart-topping superstar to make the newcomer a success. Insiders say that the people responsible for said new artist have even requested rejected tunes from the established artist’s current album for the upstart to rerecord. It has already been reported that the novice crooner’s first single is a discarded song from the veteran heartthrob’s junior album. Apparently the superstar is flattered that his disposable material is being recycled and that the neo singer is being patterned after him.
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Now, I was thinking Mario and Usher, and apparently a lot of other people were too. Sure enough, somebody dug up an unreleased track - Usher's "Just A Friend" that didn't end up on his latest album. Here's the link to his version.
http://www.arista.com/aristaweb/Usher/av.html