'Saturday Night Live' hasn't released a promo yet for this week's episode, which features 'Aquaman' star Jason Momoa as its host. But Momoa has been doing plenty of self-promotion, sharing videos on Instagram with his 6.9 million followers. In one post he captioned a video: "The greatest moment in my career is about to go down this week." In another video, Momoa named Chris Farley and Adam Sandler as two of his favorite cast members, says UpRoxx.