Some of the Cyrkle personnel ended up with Bill Deal & the Rhondells.
Not the same Rhondells.
Per wiki:
They were originally a “frat rock” band called the Rhondells but were later discovered and managed by Brian Epstein, who was best known as manager of the Beatles.
Also this interview.
https://www.psychedelicbabymag.com/2024/05/the-cyrkle-interview.html