The Buddy Holly tribute Rave On: Buddy Holly is out June 28th and features quite an esteemed group of artists ranging from Paul McCartney and Julian Casablancas to Florence and the Machine and The Black Keys. Fiona Apple’s contribution has just been leaked and finds her once again teaming up with multi-instrumentalist/producer Jon Brion. Holly’s original charmed because of its overt simplicity. Apple knows better than to try to fuss up a winning formula, so she leaves the arrangement sparse and lets her voice do all the work. Her cadence lends more of a country feel to the melody, while adding a bit of a darker edge with her subtly tense vibrato.