Conversation so far:
What was Billys first job?
Craddock's first release was "Smacky-Mouth", which was recorded in 1957 for the local Greensboro Sky Castle label.
how old was he?
CANNOTANSWER.
How did smacky mouth do?
CANNOTANSWER.
did it have a hit anywhere?
He did, however, become very popular in Australia.

Question: What did he do after that release?
Self-contained rewrite: What did Billy "Crash" Craddock do after the release of the song Smacky-Mouth?