Mick Jagger has been tapped to host the big season finale episode of SNL May 19. Jagger will both host the show and act as musical guest. With the long demise of The Beatles, The Rolling Stones rank as the greatest rock and roll act still performing together as an a band. Reportedly, Mick Jagger and Keith Richards are working on songs for another new upcoming Rolling Stones album as well. It is not clear what songs Mick Jagger will perform on SNL, or whether it might involve a preview of a new song from the upcoming album.