Best Cover Songs

For this category I'll use my rough definition; a new version of a song made famous by someone else. Therefore I won't include Springsteen's "This Land is Your Land" or Clapton's "Crossroad Blues", because the songs are standards, and I won't include The Ramones' "Spiderman Theme", as it wasn't really identified with another artist. Sure, it's a bit arbitrary, but that's my rules, and I'm stickin' with 'em!
Some of these are great because they're better than the original, and some are just dang funny (and some are both.) Click on the song title to go to the amazon.com page, where you can listen to a sample.

1. "Enter Sandman" by The Mighty Mighty Bosstones
   Faster and more intense than the original, and completely irreverent.
   
2. "Enter Sandman" by Pat Boone
   Funnier than funny, check it out.
   
3. "Renegades of Funk" by Rage Against the Machine
   explosive funky tribute. Rage at their best.
   
4. "Fortunate Son" by the Dropkick Murphys
   Irreverent and intense. It's at once funny, yet deadly serious. They make both ideas come through at once.
   
5. "Dirty Water" by the Dropkick Murphys
   The ultimate version
   
6. "How I could Just Kill A Man (Bonus track 2)" by Rage Against the Machine
   As intense as it gets.
   
7. "Crazy Train" by Pat Boone
   Swing away with Pat: the Master of Metal.
   
8. "Sweet Emotion" by the Mighty Mighty Bosstones
   Blisteringly Fast.
9. "I'm a Believer" by Smash Mouth (from the Shrek soundtrack)
   Sure, it was overplayed, but it's a great take on the original.