<Tr> <Td> AllMusic </Td> <Td> </Td> </Tr> <P> The soundtrack CD became a best seller, certified 8 × Platinum as of October 2007 with sales of 7.9 million copies in the United States as of January 2015 . It won the Grammy Award for Album of the Year in 2002, the Grammy Award for Best Country Collaboration with Vocals (for singer Dan Tyminski, whose voice overdubbed George Clooney's in the film on "I Am a Man of Constant Sorrow", Nashville songwriter Harley Allen, and the Nashville Bluegrass Band's Pat Enright), and the Grammy Award for Best Male Country Vocal Performance for "O, Death" by Ralph Stanley . </P> <P> In 2001, the album spent over 20 weeks on the Billboard Top Country Chart . It won the Album of the Year Award and Single of the Year Award for "I Am a Man of Constant Sorrow" won an award for single of the year at the Country Music Association Awards . It also won the Album of the Year Award at the Academy of Country Music Awards and took home 2 International Bluegrass Music Awards: Album of the Year and Gospel Recorded Performance of the Year (for Alison Krauss and Gillian Welch on "I'll Fly Away"). </P> <P> Some of the artists on the soundtrack played a concert at the Ryman Auditorium in Nashville, Tennessee, which was recorded in the documentary film, Down from the Mountain . </P>

Who sang i'll fly away in o brother where art thou