Question: What year was the bass, vocals member of Four Lovers born? 
Sentence (from "Four Lovers"): The Four Lovers was a band formed in 1956 that was the result of vocalist Frankie Valli joining The Variatones (Tommy DeVito, lead guitar; Henry Majewski, rhythm guitar; Frank Cattone, accordion; and Billy Thompson, drums) in 1954.
Relevant evidence: No