Klaus Flouride is the stage name of Geoffrey Lyall (born May 30, 1949), an American musician who is the bassist and backing vocalist for the San Francisco punk rock band Dead Kennedys.

[3] During the Great Depression, his father had played saxophone and banjo in New Orleans speakeasys, and from an early age Klaus had access to his parents' wide-ranging record collection.

[3]: 1:05:08  At age 8, After seeing Buddy Holly on the Ed Sullivan Show, his parents bought him his first Stella guitar after his continuous insistence.

[6] He moved between Boston and New York City for the next few years, playing concerts ranging from solo performances to R&B and blues bands.

[8] After Dead Kennedys broke up in 1986, Flouride concentrated on his solo career, releasing Because I Say So in 1988 and The Light Is Flickering in 1991, the latter album including the song "Dancing with Shauna Grant".