Pete Seeger was an American folk singer and songwriter who was a major figure in the mid-20th century folk music revival. He was a key figure in the protest movement of the 1960s and 1970s, writing and performing songs that addressed social issues such as civil rights, environmentalism, and anti-war activism. Seeger was also a founding member of the influential folk group The Weavers, and his influence on folk music is still felt today.