During the WGA strike Joss Whedon started writing a three part musical series for the internet. Each of the three episodes will be approximately ten minutes each.

“It’s the story of a low-rent super-villain, the hero who keeps beating him up, and the cute girl from the laundromat he’s too shy to talk to.”

“Doctor Horrible’s Sing-Along Blog” stars Neil Patrick Harris as Dr. Horrible, Nathan Fillion as Captain Hammer, Felicia Day as Penny and a cast of dozens.” And yes NPH sings… Link