The Mighty Mighty Bosstones, "Sister Mary" from Pin Points and Gin Joints (The Last Angry Man)
Skammentary: Though of course in the motion picture The Nun's Story the eponymous nun played by Audrey Hepburn is named Sister Luke, not Sister Mary.
"Can you remember the school in the slums?
Can you hear the trombone, the guitar, and the drums?
Sure you remember, and you know which one,
You went to the one, my son, that's run by the nun.
"Hey, Sister Mary, can you teach me a song?…"