Peter, Paul and Mary's self-titled debut album from 1962 was a cornerstone of the American folk revival. The trio, consisting of Peter Yarrow, Noel "Paul" Stookey, and Mary Travers, immediately became known for their flawless three-part harmonies. The music combines traditional folk songs with new compositions and socially conscious lyrics. This album instantly produced hits such as "Lemon Tree" and the Pete Seeger cover "If I Had a Hammer," establishing the group's status as a leading voice of a generation.