Question: Who sings backup on thank you led zeppelin?
Disambiguated questions and answers: question: Who sings backup on Thank You by Led Zeppelin and plays drums for the band?
Who sings backup on Thank You by Led Zeppelin and plays bass guitar for the band?
Who sings backup on Thank You by Led Zeppelin and plays theremin for the band?
answer: John Bonham
John Paul Jones
Jimmy Page
Natural Questions answer: Jimmy Page (from the Wikipedia article "Thank You (Led Zeppelin song)")