Question: Of Myles Goodwyn and Justin Timberlake, which started his musical career earlier?
Sentence (from "Myles Goodwyn"): Myles Francis Goodwyn (born Miles Francis Goodwin, (1948--) 23, 1948 ) is a Canadian record producer, guitarist, lead vocalist, main songwriter, and founding member of the veteran Canadian hard rock band April Wine.
Relevant evidence: Yes