Conversation so far:
what did Barry White do in the 1970s?
In 1972, Barry White got his big break producing a girl group he had discovered called Love Unlimited.
how did the girl group Love Unlimited do?
Love Unlimited became the first female group to have an album reach the top five since Greatest Hits Vol. 3 from Diana Ross and the Supremes in 1970.

Question: what did he go on to do after producing them?
Self-contained rewrite: what did  Barry White go on to do after producing the girl group Love Unlimited?