Joss Whedon! N.P.H.! Nathan Fillion! Teaser! Excellent!

Sometimes back during the brain-rot of the writers strike, we learned that Joss Whedon was passing his time working on a web-only comic musical starring Nathan Fillion of "Firefly" and Neil Patrick Harris of "How I Met Your Mother." How awesome does that sound? This morning, BuzzSugar clued me in to the existence of this trailer for "Dr. Horrible's Sing-Along Blog. If this doesn't make you smile, get to a doctor immediately.

Teaser from Dr. Horrible's Sing-Along Blog on Vimeo.