Rihanna hit the Saturday Night Live stage last night for the second time this year, and her fourth time ever. She set it off with a performance of her latest smash "Diamonds," complete with green screen effects, then returned later in the episode to debut a new song off her upcoming album Unapologetic, "Stay." Watch "Diamonds" above, and check out her live premiere of "Stay" below. Unapologetic drops November 19.

Video: Rihanna "Stay" (Live on Saturday Night Live

[via XclusivesZone]