Adaptations!

Adaptations often take a hit when someone wants to get down to the reason musical theatre is dying. While I'll agree that I'm getting really sick of all the movie-to-stage adaptations as of late, there are so many shows I love adapted from various sources that this practice can't be discounted.

So what would you guys like to see adapted for the stage in musical form? Book, movie, television show, urban legend, play, etc.?

(I'm tired right now and have no brilliant idea, so I'll try to add to this thread tomorrow. As if you're all dying to know what I'm longing for. heh.)