"Circle" is a song written and performed by Harry Chapin.
Though it wasn't released as a single, it quickly became a fan favorite and is the "Chapin theme song.
"[1] The song was recorded by The New Seekers and become one of their highest-charting singles, though Chapin's version is the most popular.
It has been included on numerous compilation albums from Chapin's record label.
Tom, like Harry, frequently performs the song in concert and has included it on multiple albums.