Joss Whedon's dance movie may never get to first position, but he's got something much, much better on the way: A serialized online musical, starring Nathan Fillion from Firefly as a musical superhero. Captain Tightpants sings! Click through for details.

Dr. Horrible's Sing-Along Blog will be a series of three 10-minute webisodes about "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," Joss revealed on Whedonesque, his fansite. Neil Patrick Harris will play Dr. Horrible, Nathan Fillion will play Captain Hammer, and Felicia Day will play Penny. Plus "a cast of dozens!"


Joss wrote Dr. Horrible during the writers' strike, with the help of his brothers Jed and Zack, plus Jed's fiancee Maurissa. Even though Joss is now busy prepping Dollhouse (his amnesiac agent show starring Eliza Dushku) with a May start date, and he has many comic book scripts due, he's somehow managed to start shooting on Dr. Horrible as well. No word on when we'll actually get to sing along with Dr. Horrible. But is it terribly wrong that I'm already anticipating this cyber-musical as much as Dollhouse, or maybe even a bit more? [Whedonesque, via SFX and IllusionTV]