For a few days after "Dr. Horrible's Sing-Along Blog" stole the show at the Neil Patrick-hosted Emmys back in September, it was all any nerd could do to keep from bursting into song .

Now, thanks to Cartoon Network's "Batman: The Brave & the Bold," NPH is back in the villain seat as the diabolical Music Meister in the appropriately titled episode "Mayhem of the Music Meister!" which is set to premiere Friday, Oct. 23.

The best part? The episode's soundtrack will be available for download on iTunes and other sites the next day via New Line Records. If digital isn't your bag, Amazon.com will have hard copies on hand as well.

The soundtrack will feature the episode's five musical tracks, plus the BTB&TB theme song making it a kind of EP of evil (awesome evil).

Check out a sample of the episode and its tunage after the jump.

There's your ear worm for the rest of the day - possibly the rest of the week/month.