Melissa McCarthy stopped by the Ellen Show with her “The Kitchen” co-stars Tiffany Haddish and Elisabeth Moss and gushed about her love for Billie Eilish. Well, in true Ellen fashion they helped Melissa put herself in Billie’s video for “Bad Guy” and premiered it on the spot. Little did she know that Billie was hiding in wait. Also, the video is hilarious. Check it out!