Conversation so far:
How did their solo carrers take off?
Jimmy was becoming "big in Japan".
Why was he becoming big?
", and in 1972 had a #1 hit in the United Kingdom with "Long Haired Lover from Liverpool".
What other hits or successful ventures did he have?
Donny had a string of pop hits with a string of covers of earlier teen-pop songs.

Question: What about the other members of the band?
Self-contained rewrite: What about the other members of the band besides Donnie and Jimmy?