Alison Krauss Biography
She has released eleven 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. During her career she has won 27 Grammy Awards, making her the most awarded female artist, the most awarded singer, and tied for the second most awarded artist overall in Grammy history.
Source: wikipedia.org