Dan Tyminski is an American bluegrass musician, singer, and songwriter, best known for his work as a member of the band Alison Krauss and Union Station. He gained fame for his distinctive voice and exceptional guitar skills, contributing to the band's success in the bluegrass and country music scenes. In addition to his work with Union Station, Tyminski has released solo albums and collaborated with various artists across genres. He is also recognized for his role in the soundtrack of the film O Brother, Where Art Thou?, where his vocals were featured prominently, further solidifying his reputation in the music industry.