I LOVE the PMDawn remake of Under The Bridge. They also did "No Woman No Cry" and it is fantastic.
My other favorite remakes are:
Alana Davis, "The Reaper" (Blue Oyster Cult's "Don't Fear The Reaper")....She SLAMMED it.
Latin Rascals, "Don't Let Me Be Misunderstood" (the remixed version)
Insane Clown Posse, "Let's Go All The Way" (originally by Slyfox)
Nonpoint, "Evil Ways" (originally by Santana)
PMDawn, "Blurry" (originally by Puddle of Mudd)
The Doors, "Gloria" (originally by Van Morrison)
Seduction, "Heartbeat"
Alana Davis, "Friends" (originally by Whodini)
Nonpoint, "In The Air Tonight" (originally by Phil Collins)
India, Tito Puente & The Count Basie Orchestra, "Fever"
Heavy D, "Now That We Found Love" (originally by Third World)
Aaliyah, "Let Me Know" (originally by the Isley Brothers)
Wow, I think I could go on for hours here. Let me stop now.