From her early years as a child fiddle prodigy, to her songwriting success, to her winning streak with the Grammys, Krauss and her band Union Station have brought bluegrass to the modern world.  This new collection brings together soundtrack work (from O Brother Where Art Thou? and other films), duets (with James Taylor, Brad Paisley and the Louvins) and other rarities, all wrapped in her angelic mountain-girl voice.