She has released fourteen albums , 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 , an album also credited with raising American interest in bluegrass , and the '' Cold Mountain '' soundtrack , which led to her performance at the 2004 Academy Awards
2004 Academy Awards
76th Academy Awards
Alison Krauss