Trinidad López III was an American singer, guitarist, and actor. His first album included a cover version of Pete Seeger's "If I Had a Hammer", which earned a Golden Disc for him. His other hits included "Lemon Tree", "I'm Comin' Home, Cindy" and "Sally Was a Good Old Girl". He designed two guitars for the Gibson Guitar Corporation, which are now collectors’ items. A documentary on his life and career, "My Name is Lopez" was released in April 2022.

Peter Seeger was an American folk singer and social activist. He was a fixture on nationwide radio in the 1940s, and had a string of hit records during the early 1950s as a member of The Weavers, notably their recording of Lead Belly's "Goodnight, Irene," which topped the charts for 13 weeks in 1950. Members of the Weavers were blacklisted during the McCarthy Era. In the 1960s, Seeger re-emerged on the public scene as a prominent singer of protest music in support of international disarmament, civil rights, counterculture, workers' rights, and environmental causes.