Love Reign O'er Me performed by Bettye LaVette

One of the greatest rock songs ever written, and performed in a fantastic, unique style.

I remember watching this with the wife when it was live on TV in 2008 when Pete Townshend and Roger Daltrey were honored at the Kennedy Center Honors. My wife is more of a jazz fan, thus loves Bettye, and I'm a rock fun, thus The Who, so this was a perfect mixture for both of us. I think by the time the song was over we were both in tears.