Apparently parodies of the LMFAO song "Sexy and I Know It" are the new "Thing" on YouTube: There's one that uses clips from the '80s "He-Man" cartoon series, so it looks like He-Man is doing all the singing.

Then there's also a kid-friendly parody called "I'm Elmo and I Know It" that uses clips from "Sesame Street", and has all new lyrics about being a furry, red puppet that doesn't wear any clothes.

Enjoy them both!