Donald Fagen is an American musician and songwriter, most recognized as the co-founder and lead vocalist of the influential rock band, Steely Dan. His music is characterized by complex jazz-influenced structures and harmonies, showcasing a fusion of rock, pop, and jazz. Fagen's distinctive voice and intricate lyrics have played a significant role in Steely Dan's signature sound. His solo work, including the critically acclaimed album "The Nightfly," continues to exhibit similar stylistic elements and has solidified his place in music history.