Conversation so far:
How did Dion DiMucci end up in the Belmonts?
Bob and Gene Schwartz signed Dion's friends, the Belmonts, and teamed them, with Dion singing lead.
Who else was signed to the Belmonts, besides Dion DiMucci?
The original Belmonts consisted of Angelo D'Aleo, Carlo Mastrangelo, and Fred Milano.
Did the Belmonts release an album?
In late 1966 the three original Belmonts reunited with DiMucci and recorded the album Dion & The Belmonts Together Again.
What was the Belmonts' initial hit?
The Belmonts' first Laurie release, I Wonder Why, was recorded at New York's Bell Sound Studios and brought them immediate success.
How did No One Knows by the Belmonts do on the charts?
Dion and The Belmonts song, No One Knows reached #12 on the R&B chart and #19 on the Billboard Hot 100 in 1958.
Did Dion DiMucci break with the Belmonts in 1960?
There were musical, personal and financial differences between Dion and members of the Belmonts, and in October 1960, Dion DiMucci decided to quit for a solo career.

Question: What did he do after the hospital?
Self-contained rewrite: What did Dion DiMucci do after checking into the hospital for heroin addiction?