Peter Yarrow, the singer-songwriter who was one-third of the folk trio Peter, Paul and Mary, has died at age 86, his representative confirmed to ABC News.

Folk singer Peter Yarrow — writer of the timeless classic "Puff the Magic Dragon" and one-third of the legendary 1960s trio Peter, Paul and Mary — died Tuesday, a family representative said. He was 86 and had been diagnosed with bladder cancer four years ago.

Peter Yarrow, who was popular for his stint with the folk music trio Peter, Paul & Mary, has passed away at the age of 86. Known for releasing hits like “Puff, the Magic Dragon,” “500 Miles,” and more with the group,

Peter, Paul and Mary quickly emerged as the winning 1960s iteration of a clean-cut, meticulously arranged supper-club and concert-hall approach to performing folk songs, passed down from 1950s groups like the Weavers and the Kingston Trio.

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.

The singer-songwriter and social activist best known as one-third of the folk-music group Peter, Paul and Mary, has died at age 86.

Peter Yarrow, the singer, songwriter, and political activist who made up one third of the folk group Peter, Paul and Mary, has died at 86.

American singer and songwriter Peter Yarrow, who found fame with the 1960s folk music trio Peter, Paul and Mary, died on Tuesday at the age of 86, his publicist said.

Peter Yarrow, a 5-time Grammy winner who co-founded the folk-pop trio Peter, Paul & Mary and co-wrote its hit "Puff the Magic Dragon," died January 7 at 86.

Peter, Paul and Mary singer/songwriter Peter Yarrow died Tuesday at his New York City home, Variety and The Guardian confirmed. He was 86 and had been diagnosed with bladder cancer four years ago. Yarrow wrote or co-wrote many of the trio's songs including "Day Is Done,

The singer and songwriter who helped popularize folk music in the 1960s died of bladder cancer at his home in New York.