Some funny/cool/stupid music covers for me are:
System of a Down- Metro {originally by Berlin}- Funny how the guys from System took this 80's pop song and put it in their own style...
System of a Down- Snowblind {originally by Ozzy}- Cool version of the song...
Green Day- Outsider {originally by Ramones}- Stupid Song, Horrible, they did an injustice to this classic Ramones song and it is exactly the same except for it is sung by Billy Joe Armstrong!