Conversation so far:
What was Perry Como's nickname?
Mr.
Casual.
What was the name of his first band?
Hot Diggity.
What was his first album?
Music critic Gene Lees describes it in his sleeve note to Como's 1968 album Look To Your Heart.
What is Perry Como's full name?
Perry Como.
Where did Perry grow up?
CANNOTANSWER.

Question: Who were his bandmates?
Self-contained rewrite: Who were Perry Como's bandmates?