Tina Fey really can do it all. When The Ragtime Gals returned to The Tonight Show Starring Jimmy Fallon on Wednesday night, the actress decided to get in on the fun. As the group sang a barbershop quartet version of Bruno Mars's "That's What I Like," Tina stole the show with her impressive pipes. Let's just say, we wouldn't mind seeing her reprise her role as Ms. Norbury in the upcoming Broadway adaptation of Mean Girls.