Arlo was the son of Woody Guthrie. The man who wrote This land is your land. He wrote many songs, and played (as a matter of fact still plays) with Pete Seeger. They have an annual concert every year at about Christmas time at Carnegie Hall in which both Pete Seeger and Arlo Guthrie perform. One popular misconception about Arlo however is that he wrote the song "City of New Orleans". It was performed by John Denver as well, but neither of them wrote it. It was written by Steve Goodman.