Call it the Dr. Horrible follow-up you didn't see coming. Joss Whedon's next musical project has nothing to do with Dollhouse and is happening sooner than you may think. Like, next month sooner.

We've given you the lowdown on the US remake of Life on Mars already, and the word is out: It's going to need a little work. But we think that the problem goes a little deeper than just casting and script - We think that it's going to take some major surgery to make this latest revamp work for an American audience.…