David Lynn Thomas (born 1953 in Miami, Florida) is an American singer, songwriter and musician.
He was one of the founding members of the short-lived proto-punkers Rocket from the Tombs (1974–1975), where he went by the name of Crocus Behemoth, and of punk group Pere Ubu (1975–present, intermittently). He has also released several solo albums. Though primarily a singer, he sometimes plays melodeon, trombone, guitar or other instruments.
Thomas has described his artistic focus as being the "gestalt of culture, geography and sound". Common themes crop up throughout much of his work, such as the US Interstate Highway system, images of roadside or "junk" tourist culture, Brian Wilson, AM Radio, and many others.
Thomas has a distinctive, high pitched voice; Emerson Dameron described Thomas's singing as "James Stewart trapped in an oboe", and Greil Marcus writes, "Mr Thomas's voice is that of a man muttering in a crowd. You think he's talking to himself until you realize he's talking to you."