Slashstreet Boys. Horror movie boy band.

[HappyGilmore]

The Merkins have a channel featuring parodies of popular songs featuring iconic horror movie villains like Freddy Krueger, Ghostface, Jason Voorhees, etc.  It's actually pretty clever.
http://youtu.be/oliCVn7Ic68
http://youtu.be/NKFK7fGy4u0
http://youtu.be/P8dfZ3N_c2E

[chainsaw midget]

I remember seeing the first video once.  I had no idea they did others. 

[HappyGilmore]

They've probably a dozen or so now.  Some are 'solo' videos where it's just one character doing a song. Some are them collectively.

Supposed to be some more dropped soon with Halloween coming up.