My Sweet Lord - George Harrison. I grew up listening to this song and I will never grow tired of it. It came on the radio today, and with the windows down and the music up the world was at peace for five minutes.
The Muse: Pattie Boyd. She was the inspiration for George Harrison's "Something", "I Need You", "For You Blue", and "Isn't It a Pity", as well as Eric Clapton's "Layla", "Wonderful Tonight", and "Bell Bottom Blues".