Natasha Lyonne makes her hosting debut for the "Saturday Night Live" season finale on May 21. Lyonne is the Emmy Award-nominated co-creator, director, and star of Netflix's highly acclaimed "Russian Doll," currently streaming its second season. She will star in and executive produce Peacock's forthcoming "Poker Face."Japanese Breakfast performs as musical guest for the first time. The Grammy Award-nominated band is currently on a North American tour following the release of its critically acclaimed album, "Jubilee."