Louis CK and Rihanna are joining forces to close Saturday Night Live's 40th season in grand style, with a season finale this Saturday that promises to be among the best episodes of the season. CK always brings it and Rihanna is Rihanna. The two of them were joined by future Ghostbuster Leslie Jones to record some promos that were really charming if a little too short. Also, can we just say that Rihanna is a master of the reaction shot, and if you're reading this Lorne Michaels, we'd like to officially nominate her for double duties as host and musical guest next year. That is all.