It seems everyone and their brother has sent this in via email so I thought I’d better post it before someone’s head asplodes. It’s created by Joss Whedon who also produced the tragically short lived Firefly and horribly overrated Buffy the Vampire Slayer and Angel*. It stars former Doogie Hoser, M.D. star Neil Patrick Harris and Firefly’s Nathan Fillion, which right there should be all the reason you need if the fact that Joss creating it wasn’t enough.
It’s called Doctor Horrible’s Sing-Along Blog. It’s a musical. It’s funny. And it’s worth your attention.