From the book "Joel Whitburn's Top Pop Singles 1955-1999":
The Rondels '61
Rock and roll band from Boston: Leonard Petze and cousin James Petze (d: 9/12/1993 of cancer, age 48) with Raymond Pizzi and Leonard Collins. Leonard Petze is a former VP of A&R for Epic Records.
Title: Back Beat No. 1………………………………Shades Of Green Amy 825
Debut: 8/14/1961
Peak: 66