It's an actress-versus-actress showdown in the latest "Saturday Night Live" promo.



Two-time Academy Award nominee Jessica Chastain is set to host this week's upcoming Season 43 episode, so she got ready by rumbling with "SNL" cast member Kate McKinnon. In the short video, the two actresses circled one another and flexed their comedy muscles. Each warned that they'd been busy learning the other's work, which meant nailing impersonations of Hillary Clinton, Kellyanne Conway, and Jeff Sessions for Chastain and being able to do the titular character from the crime drama film "Molly's Game" for McKinnon.



The two continued to try to intimidate other until their silly (but also funny) feud came to an abrupt end -- and a new one began. Watch the promo below.




In addition to starring Chastain as host, this week's episode will feature Troye Sivan as the musical guest.



"SNL" airs live Saturdays on both coasts at 11:30 p.m. ET on NBC.