Pete Seeger in New York City. 2009. Steve Mack/FilmMagic hide caption

Pete Seeger
Pete Singer performs at a convention of The Public Citizen in Washington, DC in 1981. Mickey Adair/Getty Images hide caption
Pete Seeger performs during a concert marking his 90th birthday at Madison Square Garden in New York on May 3, 2009. Timothy A. Clary/AFP/Getty Images hide caption
Pete Seeger was an environmentalist, an activist and the most prominent folk musician of his generation. Neilson Barnard/Getty Images hide caption
Toshi Seeger with her husband, folk singer Pete Seeger, in 2009. Bennett Raglin/Getty Images hide caption
Pete Seeger released two albums this year: Pete Remembers Woody (a Woody Guthrie tribute) and A More Perfect Union, a collaboration with guitarist Lorre Wyatt. David Bernz/Courtesy of the artist hide caption