Conversation so far:
How did Dion DiMucci end up in the Belmonts?
Bob and Gene Schwartz also signed Dion's friends, the Belmonts, (Carlo Mastrangelo, Fred Milano, and Angelo D'Aleo), a vocal group named for nearby Belmont Avenue.
Who else was signed?
teamed them, with Dion singing lead.
Did they release an album?
Their initial hit was followed by "No One Knows" and "Don't Pity Me," which also charted the Billboard Top 100.
What was their initial hit?
No One Knows.
How did no one knows do on the charts?
charted the Billboard Top 100.

Question: Did he break with the Belmonts in 1960?
Self-contained rewrite: Did Dion DiMucci break with the Belmonts in 1960?