Dan Tyminski (b. June 20, 1967) is a bluegrass composer, vocalist, and instrumentalist. He is a member of the band Alison Krauss and Union Station and has released a solo album entitled Carry Me Across the Mountain (2000) on the Doobie Shea Records label. He is likely best known for the song "Man of Constant Sorrow," which was featured in the movie O Brother, Where Art Thou? and won the 2001 CMA award for best single as well as a Grammy Award for best Country Collaboration with Vocals (along with Harley Allen and Pat Enright