Listen to The One Who Knows (Acoustic Revisited Version) (featuring Mary Chapin Carpenter) online. The One Who Knows (Acoustic Revisited Version) (featuring Mary Chapin Carpenter) is an English language song and is sung by Mary Chapin Carpenter and Dar Williams. The One Who Knows (Acoustic Revisited Version) (featuring Mary Chapin Carpenter), from the album Many Great Companions, was released in the year 2010. The duration of the song is 3:36. Download English songs online from JioSaavn.