Conversation so far:
what was some of John Butler (musician)'s earliest works?
"Wings Are Wide.
Did he ever go back to his band?
Released in Australia on 8 February 2014, Flesh and Blood was produced by Jan Skubiszewski and features a vocal duet with Ainslie Wills.
did he ever marry or have children?
CANNOTANSWER.
did he ever tour in the united states?
following the band's largest tour of the US.

Question: where there any conflicts with his band?
Self-contained rewrite: where there any conflicts with John Butler's band?