who sings man of constant sorrow o brother where art thou
O Brother, Where Art Thou? (soundtrack) "I Am a Man of Constant Sorrow" has five variations: two are used in the film, one in the music video, and two in the soundtrack. Two of the variations feature the verses being sung back-to-back, and the other three variations feature additional music between each verse.[8] The voices of the Soggy Bottom Boys were provided by Dan Tyminski (lead vocal on "I Am a Man of Constant Sorrow"), Nashville songwriter Harley Allen, and the Nashville Bluegrass Band's Pat Enright.[9]
Chris Thomas King King's acting career includes prominent roles in several films, including two music-related films. In the Oscar-winning film Ray he plays band leader and blues guitar player Lowell Fulson. During production he collaborated with Ray Charles in scoring the film.[3] In O Brother Where Art Thou?, he portrays a skilled blues guitarist who claims he sold his soul to the devil in exchange for his skill on guitar. The character is based on blues musicians Tommy Johnson and Robert Johnson, both of whom have been linked to selling their soul to the devil at a rural Mississippi crossroads.[4][5] King also accompanies the film's band the Soggy Bottom Boys on guitar; his rendition of "Hard Time Killing Floor Blues" was recorded live during filming and included on the film's Grammy-award-winning soundtrack.