bob dylan

Bob Dylan, who's been featured in at least two ads for Apple, has signed on with the competition -- IBM.

Dylan, with his signature sunburst Fender Stratocaster, is seen in a new ad having a conversation with Watson, the computer giant's cognitive technology that processes information more like a human than a computer. Watson tells Bob that it has read all his lyrics and that his "major themes are time passes and love fades," to which Dylan says, "That sounds about right."

Dylan then suggests they write a song together, which is fine with Watson, which says it can sing. But when all it can muster up is "doo be bop be bop a do," Dylan picks up his guitar and walks away.

Photo: Getty Images