Will Oldham on Bonnie 'Prince' Billy

W - Sweeney called me and said that Johnny Cash just recorded '' I See A Darkness.'' We had a Bowery Ballroom show a week or two later, and he invited Rick Rubin to come to the show; he came to the show . . . and asked if I wanted to play piano on the song.A - Which you agreed to do despite not knowing how to play piano.W - Yes . . .A man who acts under the name Will Oldham and a singer-songwriter...