Dr. Horrible is Joss Whedon's latest effort, a direct to internet show starring Neil Patrick Harris, Nathan Fillion, and Felicia Day. It's a musical about a want to be supervillain and his nemesis, Captain Hammer.

Will Doctor Horrible prove himself worthy of admittance to the Evil League of Evil? Will he be able to finish his Freeze Ray and stop time? Will he win the heart of Penny?

You can only find out, true believers, by tuning into Dr. Horrible's Sing-Along Blog this week only!