It isn’t just basement dwellers, hyper productive CEOs, and information age hipsters who are creating online projects these days.  Famous people from traditional media are also trying their hand at creating something new and different.  Joss Whedon, the creator of Buffy and Firefly, is turning his hand to the online world, with his newest effort: Doctor Horrible’s Sing-a-long Blog.  Here’s what we know so far:

It’s the story of a low-rent supervillain (Neil Patrick Harris as Dr. Horrible), the hero who keeps beating him up (Nathan Fillion as Captain Hammer), and the cute girl from the laundromat he’s too shy to talk to (Felicia Day as Penny).

Did I mention it’s a musical?

This isn’t the first time Joss has delved into the waters of genre musicals.  The Buffy episode “Once More With Feeling” was an amazing mix of plot and song. More than that, the sudden outburst of singing is actually explained in the context of the show.

It’s also the last truly great episode of the series; the perfect shark:

Here’s Neil Patrick Harris Singing:

via the newborn DoctorHorrible.net