Conversation so far:
Was Van Morrison his Van Morrison's real name?
George Ivan Van Morrison is his real name.
Who was one of the 1st people Van Morrison looked up to?
Young Van Morrison grew up listening to artists such as Jelly Roll Morton, Ray Charles, Lead Belly, Sonny Terry and Brownie McGhee and Solomon Burke.
Did Van Morrison work with anyone during his early life and musical roots?
Van Morrison joined with various local bands, including one called Deanie Sands and the Javelins, with whom he played guitar and shared singing.
Who did Van Morrison perform with Deanie Sands and the Javelins?
The line-up of the Javelins was lead vocalist Deanie Sands, guitarist George Jones, and drummer and vocalist Roy Kane.

Question: When did his career take off?
Self-contained rewrite: When did Van Morrison's career take off?