As you all probably know, Tina Fey is hosting Saturday Night Live tonight with musical guest Justin Bieber. To promote the show, NBC has released a few short – but hilarious – promo spots. Check them out below, and don’t forget to tune in to SNL tonight to see Tina do her dead-on impression of Sarah Palin and more!

Tina Fey Fan will provide you with coverage from the show tomorrow, so be sure to return then!