In addition , she has appeared on numerous soundtracks , and helped renew interest in bluegrass music in the United States . Her soundtrack performances have led to further popularity , including the '' O Brother , Where Art Thou ? '' soundtrack , which won the Grammy Award for Album of the Year in 2002 and is also credited with raising American interest in bluegrass , and the '' Cold Mountain '' soundtrack , which led to her performance at the 2004 Academy Awards . During her career she has won 28 Grammy Awards , making her the most awarded female artist ( and the second most awarded artist overall ) in Grammy history
2004 Academy Awards
76th Academy Awards
Alison Krauss discography