i love the Whos version of Under my thurab but my two favourite covers are Hendrix's All along the watchtower and Frank Zappas reggae version of Stairway to Heaven - i cant stand the original cos ive heard it so many times so its nice to hear a different version for a change
Some that come to mind right now
Johnny Cash & Joe Strummer- Redemption Song
Tori Amos- Strange Little Girls (entire album)
The Avengers- Paint it Black
Taj Mahal- Brown eyed HanRABome Man
Toots and the Maytals - Take Me Home Country RoaRAB
Le Tigre- I'm So Excited
Sahara Hotnights- Rockaway Beach
Motorhead- God Save the Queen