Question: Who has been a member of more bands, Tom Petty or Bobby Gillespie?

Related documents: [0]  [DOC] Robert Bernard Andrew "Bobby" Gillespie (born 22 June 1962) is a Scottish musician and singer-songwriter. He is the lead singer and founding member of the alternative rock band, Primal Scream. He was also the drummer for The Jesus and Mary Chain in the mid-1980s. [END] 
[1]  [DOC] Thomas Earl Petty (born October 20, 1950) is an American musician, singer, songwriter, multi instrumentalist and record producer. He is best known as the lead singer of Tom Petty and the Heartbreakers, but is also known as a member and co-founder of the late 1980s supergroup the Traveling Wilburys (under the pseudonyms of Charlie T. Wilbury Jr. and Muddy Wilbury), and his early band Mudcrutch. [END]  
Answer: Tom Petty
Tom Petty