The strange thing about the "Glee" Lady Gaga episode songs is that there were only two. The episode, called "Theatricality," aired in May 2010. The kids in New Directions were supposed to learn how to be theatrical, and how better to learn than to mimic today's pre-eminent show-woman, Lady Gaga?
"Funny Girl," Barbra Streisand. The first performance of the show was by Idina Menzel as Shelby Corcoran, the coach of the glee club's rivals, Vocal Adrenaline (and Rachel Berry's biological mother). She was trying to demonstrate theatricality to her students, but it wasn't a particularly exciting performance, unless you count singing into a mirror as being theatrical.
"Bad Romance," Lady Gaga. The girls of New Directions, plus Kurt, dressed in their favorite Gaga-esque outfits for the week of the assignment. They put them, and their showmanship, to good use in this choreographed number on stage. Kurt (Chris Colfer) and Santana (Naya Rivera) were standouts–until this point in the series, Santana hadn't had much of a chance to shine.
"Shout It Out Loud," Kiss. The guys of New Directions (except Kurt) weren't real keen on dressing up in Lady Gaga outfits, so Mr. Shue let them take their own direction. Their idea for a theatrical guy band was Kiss. This performance, also on stage, had the guys in full Kiss makeup and platform boots. And fireworks!
"Beth," Kiss. The unlikely couple of Puck (Mark Salling) and Quinn (Dianna Agron) reach an agreement in this episode. Puck, who got Quinn pregnant, wanted to have a role in the baby's life, even though Quinn was going to give her up for adoption. He wanted to name her Jack Daniels, but conceded that Jackie Daniels would work better for a girl. Finally, as the kids often do on "Glee," he decided to speak to Quinn in song. With the help of the guys, he takes to the front of the classroom and sings this Kiss classic, suggesting "Beth" as a name instead. From under her three-inch-long, hot pink eyelashes, Quinn agrees that he can be present when she gives birth.
"Poker Face," Lady Gaga. Shelby Corcoran and Rachel Berry (Lea Michele) make a slight effort to have a mother-daughter relationship, but Shelby realizes she wants a baby, not a full-grown daughter, and they agree to part ways. Before they do, though, Rachel wants to do a duet. It's an odd, acoustic, slowed-down version of "Poker Face," which doesn't seem particularly appropriate. Who wants to hear their mother singing about bluffin' with her muffin?
Also in the "Glee" Lady Gaga episode, Kurt and Finn get into a fight about Kurt's rather creepy crush on Finn, and the football bullies Karofsky and Azimio single out Kurt for particular pain because of his Lady Gaga outfit. They then threaten Finn when they see him putting on his Kiss makeup in the bathroom. The episode culminates with Kurt cornered alone in the hallway with Karofsky and Azimio. Their proposed pounding of Kurt is put to a stop by Finn, dressed in a red rubber-looking shower curtain in an homage to Gaga. The two thugs decide to go after Finn too, but then the wrath of the whole glee club, in full Gaga/Kiss regalia, shows up and chases them away, for the moment. The moral of the "Glee" Lady Gaga episode: "We're all freaks."
– Erin Crum