If you’re a fan of Joss Whedon (Firefly, Serenity, Buffy the Vampire Slayer), Nathan Fillon (Firefly, Serenity), Neil Patrick Harris (Doogie Howser M.D., How I Met Your Mother), musicals, and comedy, you should take the time to check out Dr. Horrible’s Sing-Along Blog.

Doogie, I mean Barney, I mean Neil Patrick Harris plays a fantastic Dr. Horrible, who is trying to get into the “Evil League of Evil!” Nathan Fillon (who played “Captain Mal” on Firefly/Serenity) plays Captain Hammer, the shallow jerk of a superhero who steals the girl (Felicia Day) from Dr. Horrible when she mis-credits Captain Hammer for saving her life from a runaway van.

Anyway, I don’t want to give too much away, but it’s available streamed from DrHorrible.com and also from iTunes (it’s only $4 total for a season pass for all three episodes). Check it out! It’s great!