It's likely because of this confrontation, and the build up to it, that Kurt finally finds the courage to stand up to his bullies. He is frustrated at home and at school, and can only take so much. Azimio and Karofsky don't take back talk very well, and want nothing more than to put Kurt in his place. Even Finn coming to the rescue in a shower curtain doesn't stop them, but facing the entire group does. Finn's courage, finally, to stand up for what is right is a fantastic moment, and one that does much to repair his relationship with Kurt. Finn may not want to jump into bed with his mother's boyfriend's son, but he does want a friendship. This is how he will get one.
Because of Finn's reluctance to do Gaga, the guys search for a similarly outlandish male role model. Or rather, models. They choose Kiss, whose look is surely at least as shocking, even if the band sticks with one basic image the entire time. "Shout It Out Loud" doesn't have the same impact that "Bad Romance" does, but it does provide something that may be a tad more relatable to the guy members of the New Directions.
Luckily, Kiss has a second song up its sleeve in "Beth," which Puck has the guys sing for Quinn (Dianna Agron). It's a tear-worthy moment, when Puck (Mark Salling) declares he is there for Quinn in any circumstance, and demonstrates the maturity needed to be a father, even if only biologically. It's no surprise that Quinn is moved by the performance, much in the way viewers at home are. Puck is not generally the most responsible individual, but here, he shuns that image to act like a man. It is most welcome.
The final two songs in "Theatricality" are "Funny Girl," a Shelby (Idina Menzel) solo, and "Poker Face," a Gaga duet shared between Shelby and Rachel (Lea Michele). The first serves two purposes: to showcase Menzel's talent, and to let Rachel figure out that Shelby is her mother. The second is a moving goodbye from a parent who has just found her daughter, but can't deal with the ramifications, so is letting her go. Sung in a very melodic style, "Poker Face" has appropriate lyrics, and is done in a way that really showcases the feelings of the two women.