There are two bands by the name The Upsetters: 1. "The Upsetters" is the name of the studio backing band of Jamaican Reggae producer Lee "Scratch" Perry, a.k.a. "The Upsetter". The members most associated with that name included guitarist Alva Lewis, organist Glen Adams and brothers Aston Barrett and Carlton Barrett on bass and drums respectively, a.k.a. The Hippy Boys. As Lee Perry's studio band, the Upsetters had three distinct line-ups, though, throughout the years 1968-1986. Read more about The Upsetters on Last.fm.