Tom Morello changed the shape of rock n'roll with his guitar playing in Rage Against the Machine. He joins us to talk about his new genre-bending project, The Atlas Underground, featuring collaborations with Marcus Mumford, Portugal the Man, EDM beats, and Morello's signature guitar sound. He'll also tell us how many songs he had to learn to play to join the E-Street Band on tour (hint, it was more than 100). Tom reflects on his former bandmate Chris Cornell, and why the message of Rage is more relevant than ever.