As Justin Timberlake continues what is now a legitimate, mainstream movie career, he seems less a musician who acts than an actor who also sings. But while he's gone from tunes to film, plenty of other stars have gone the other way, migrating from movie star to rock star (with varying degrees of success).
It should be less surprising to find out that your favorite film actor also plays guitar, sings or tickles the ivories; after all, it's just another aspect of creativity, and besides, isn't musical theater a combination of the two? In any case, here is a list of some of the top actor/musicians in rock -- solo singing careers not included.
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