I saw the title of that video and immediately hit the back button. There is seriously no way that she could possibly do that song justice. Too bad she can't just stay out of music she doesn't belong in (or music in general).

 

 

 

As for worst song ever, I can't nominate anything specific. To me, the worst music is Pop music that exists only to sell out to the public. There are the occasional gems in there, but in general, it sucks.

Any rap/hip hop/today's rock/death metal and any classic rock/metal more "raw" than "dr. feelgood".