Simon Napier-Bell is an English record producer, music manager, author and journalist. At different times, he has managed artists as diverse as the Yardbirds, John's Children, Marc Bolan, Japan, London, Ultravox, Boney M, Sinitta, Wham!, Blue Mercedes, Alsou and Candi Staton, among others. From his childhood spent in the cinemas of post-war London and a brief spell playing trumpet in the seedy bars of Montreal, to getting stoned by the pool with Peter Falk and Jack Lemmon in Beverly Hills and co-writing for Dusty Springfield, 'Sour Mouth, Sweet Bottom' is a kaleidoscopic sequence of episodes drawn from Simon's life.