Nathan & the Zydeco Cha Chas are a south Louisiana zydeco band. Its members include Nathan J. Williams (accordion, vocals), Dennis Paul Williams (lead guitar, background vocals), Mark A. Williams (rubboard, background vocals), Paul Newman (bass guitar), and Herman Brown, Jr. (drums). Nathan Williams grew up in a Creole speaking household in St. Martinville. He had an early interest in zydeco music, and as a child, Nathan attempted to watch a Clifton Chenier performance through the window of a St.