Oct. 1, 2010 Rihanna to Join Jon Hamm on SNL on October 30th By Adam Frucci Rihanna will be the musical guest on Jon Hamm’s SNL episode on October 30th. [via] Tags: splitsider comedy jon hamm nbc rihanna saturday night live snl tv More +Comments Leave a Comment Rihanna to Join Jon Hamm on SNL on October 30th