Timothée Chalamet is set to both host and perform on 'Saturday Night Live' on January 25, following the success of his Bob Dylan biopic, 'A Complete Unknown.' He has previously hosted twice and is now debuting as a musical guest, with expectations that he will perform in the character of Dylan. The sketch show will have Dave Chappelle host the January 18 episode. Chalamet’s preparation for the role has been extensive, including live performances during filming, which has contributed to his awards season acclaim.