Conversation so far:
Who were Dion and the Belmonts?
Dion and the Belmonts were a leading American vocal group of the late 1950s.
Who were Dion and the Belmonts' members?
The established trio of Angelo D'Aleo, Carlo Mastrangelo, and Fred Milano, formed a quartet with Dion DiMucci.
What happened in 1957 to Dion and the Belmonts?
After unsuccessful singles on Mohawk Records in 1957 and then on Jubilee Records, Dion DiMucci was paired with The Belmonts.

Question: Did they collaborate with anyone else?
Self-contained rewrite: Did Dion and the Belmonts collaborate with anyone?