Count Sidney & His Dukes was an influential New Orleans R&B band that emerged in the 1960s. The band was led by Sidney Simien, a musician known for his soulful vocals and energetic accordion playing. They are best known for their hit "Let the Good Times Roll," which showcases their signature blend of R&B, zydeco, and swamp pop. Their unique sound and infectious energy made them a significant force in the evolution of Louisiana music.