"That's just powerful" - Office Karaoke Video Makes Cubicle Life Fun.

Lip synching, actually, not karaoke. But other than that, awesome.

Via Office Karaoke Video Makes Cubicle Life Fun - Boing Boing


Via the comments, this older, similar, gem.
Lip Dub - Flagpole Sitta by Harvey Danger on Vimeo

Lip Dub - Flagpole Sitta by Harvey Danger from amandalynferri on Vimeo.