The song, described as relating powerfully to efforts in the U.S. to address violence, ridicule and disrespect among children, will be distributed on a CD along with a video and classroom teachers guide, to more than 2,500 summer camps and 3,000 schools in the fall.

It’s been 40 years since Peter Yarrow, Paul Stookey and Mary Travers made their debut at Greenwich Village’s Bitter End coffeehouse and helped launch a folk music revival in the 1960s. The trio separated in 1970, reuniting in 1978 and have been touring, recording and performing ever since.

Staying true to their social activist roots, PP&M will perform at the Earth Day 30th Anniversary celebration in Washington, D.C., on April 22. They will join other performers including James Taylor, Carole King, David Crosby, Chevy Chase, Ted Danson, Melanie Griffith and master of ceremonies Leonardo DiCaprio for the celebration.

Peter Paul & Mary return to the stage with a May 19 – 21 run at the Orleans Hotel and Casino in Las Vegas, and wrap up the U.S. leg of the tour November 16.