Conversation so far:
what were Perry Como's vocal characteristics?
Perry Como's voice is widely known for its good-natured vocal acrobatics.
Are there any other interesting aspects about this article?
Perry Como credited Bing Crosby for influencing his voice and style.
did he win awards?
CANNOTANSWER.
was he married?
CANNOTANSWER.
what was his best attribute?
his formidable attributes as a singer is that he makes so little fuss about them.
That celebrated ease of his has been too little understood.

Question: who did he work with?
Self-contained rewrite: who did Como work with?