Sean Lennon AutographA fully authenticated Sean Lennon autograph, featuring the star's handsome signature in black ink. Sean Lennon (1975 ), the son of Yoko Ono and John Lennon, is a successful musician and actor. In his early years, he collaborated with his mother on a number of albums before starting a more independent career collaborating with Lenny Kravitz and featuring on Michael Jackson's 1988 movie, Moonwalker. As a singer, songwriter and guitarist, he takes