"Hurt", but the late Johnny Cash. Even Trent Reznor said "That song isn't mine anymore" when commenting on Cash's cover during an interview. http://www.youtube.com/watch?v=3aF9AJm0RFc Cake - I Will Survive. By far one of the greatest covers of all time. Totally takes a song from another genre, from a different sex singer, and totally owns it. http://www.youtube.com/watch?v=7KJjVMqNIgA Also, almost anything by "Vitamin String Quartet". All they do is cover songs, and they've covered EVERYTHING. If you go to their webpage they have hundreds of albums. Personal favorite, and my fiancee will be marching to this song at our wedding... Don't Stop Believing... http://www.youtube.com/watch?v=QrZsU7x1aFk Or "Home" Cover... which we also want to fit into our wedding somewhere.