And then Brit struts off down the hall and launches into Beyoncé's "Run the World (Girls)." Except that her cheerleading uniform has been magically replaced by a torn football jersey, trucker cap, and black vinyl miniskirt. As she dances down through the school, she gathers more female backup dancers. Every woman who sees her dancing is intrigued, and every man aroused. Including me. You guys, I think Brittany S. Pierce just made me a little bit straight. Finally, she dances right into the pep rally, where more and more girls join the dance. Even Sue can't help but get caught up in the vibe, although she doesn't join the flash mob. (But Quinn and Tina both do.) At the end of the song, someone hands Brit a microphone, and she introduces her as the next senior class president. Up in the stands, Kurt looks more than a little terrified. Commercials.

Teachers' lounge. Emma and Coach Beiste sit at a table, flummoxed over how to choose between Rachel and Mercedes for the role of Maria. Will joins them, and Emma tells Will that she saw a new maturity in Mercedes when she auditioned. Will, naturally, takes all the credit, thinking that his pushing her at Booty Camp has transformed her. Ass. If they really can't decide, Will thinks he knows what they need to do.

Cut to Emma's office, where she, Artie, and the Panther have just told Rachel and Mercedes that they have to audition again. Mercedes is pissed, but Rachel knows that a callback is common in show biz. Rachel plans to sing "I Feel Pretty." You know, a song from the show that's actually sung by the character she wants to play. What a revolutionary idea. But the directors aren't down with this crazy notion -- they want both girls to sing the same song, one that they directors think will challenge them both: "Out Here On My Own," from Fame. Mercedes better count her blessing they're not making her sing a song that Maria actually sings, because I'm having trouble thinking of anyone less suited to the role than she is. You know who would be a better Maria than Mercedes? Tina. Emma. Crazy Terri. Kurt. Maybe even Howard Bamboo. Anyway, as the two girls leave Emma's office, Rachel tries to give Mercedes a good-luck hug, but is cruelly rebuffed.