Peter Yarrow, one third of the chart-topping 1960s folk trio Peter, Paul and Mary and co-writer of 'Puff,the Magic Dragon' has died.

Peter Yarrow, the singer-songwriter, activist and founding member of the folk trio Peter, Paul and Mary, has died at 86 after battling bladder cancer.

Legendary American folk music pioneeers Peter, Paul & Mary perform during their frist concert in Hong Kong late March 9, 2001. The group is composed of Mary Travers (L), Noel Paul Stookey (C) and Peter Yarrow.

The folk singer and his trio were best known for their hits ‘Puff the Magic Dragon’ and ‘Where Have All the Flowers Gone’