Physics All-Stars (and one Actor) - The Quantum World

Morgan Freeman, Stephen Hawking, Michio Kaku, Brian Cox, Richard Feynman, and Frank Close (with a little help from our old friend auto-tune ... hey, at least they don't pretend that they sing)

If it doesn't work, use the direct link.

The Guild - Do You Wanna Date My Avatar?

Surprisingly catchy.