This ad begins with a spaghetti western showdown, courtesy of a televised clip from Once Upon A Time In The West starring Charles Bronson. The clip features Ennio Morricone’s Man with the Harmonica, from the soundtrack of the movie. Then we switch from TV to music, via a streaming music player and the main track featured in the ad, namely I Shot the Sheriff by N.A.S.A. featuring Karen O from the Yeah Yeah Yeahs. It is, of course, a cover of a Bob Marley song. You can download Morricone’s Man with the Harmonica and N.A.S.A.’s I Shot The Sheriff from iTunes.