- Attaboys Although registered in only February 2001, the Attaboys have been singing informally after Friends of Harmony chapter practices for years. Their success, so far, has been demonstrated by a strong blend of vocal barbershop harmony, mixed with an enthusiastic presentation that is sure to entertain. The Attaboys are currently building up their performance retertoire and look forward to ...friendsofharmony.freeservers.com/Attaboys/index.htm