Greta Gerwig, Kate McKinnon, SNL, Billie Eilish, performance

"SNL" host Kate McKinnon was joined by "Barbie" director Greta Gerwig and surprise guests Maya Rudolph and Kristen Wiig.

Kate McKinnon, who is most famous for her role in "Barbie," hosted "Saturday Night Live" on December 16th. She was joined by a surprise guest, "Barbie" director Greta Gerwig, to introduce musical guest Billie Eilish. Eilish fittingly sang "What Was I Made For," one of the songs featured on the film's soundtrack. McKinnon and Gerwig were dressed in stylish outfits, and Eilish sat at a piano with her signature red and black hair. During her monologue, McKinnon was surprised by two more special guests, Maya Rudolph and Kristen Wiig, both former "SNL" cast members. They reminisced about their time on the show and shared some humorous moments. The three stars finished the monologue arm-in-arm, swaying together as they sang their rendition of "I'll Be Home For Christmas." All in all, it was a star-studded and nostalgic episode of "SNL" that delighted fans and showcased the talents of some of the show's most beloved performers.