<P> "The Break Up" is the fourth episode of the fourth season of the American musical television series Glee, and the seventieth episode overall . Written by Ryan Murphy and directed by Alfonso Gomez - Rejon, it aired on Fox in the United States on October 4, 2012, and features the end of several long - established romantic relationships on the show: the couples Finn and Rachel, Kurt and Blaine, and Santana and Brittany all break up . </P> <P> In New York City, Rachel Berry (Lea Michele) reunites with her former fiancé, Finn Hudson (Cory Monteith), who has been discharged from the Army, and gives him a tour through the New York Academy of Dramatic Arts (NYADA), causing Finn to feel out of place . Meanwhile, in Lima, Blaine Anderson (Darren Criss), feeling neglected by his boyfriend, Kurt Hummel (Chris Colfer), who is busy with his work at Vogue.com, cheats on him . Finn and Blaine sing Duncan Sheik's "Barely Breathing" and Blaine, feeling guilty, decides to surprise Kurt by visiting him in New York City . </P> <P> Finn, Rachel, Kurt and Blaine attend a local bar where NYADA students meet, and where Finn runs into Brody Weston (Dean Geyer). Suspicious of his and Rachel's relationship, Finn encourages them to sing Demi Lovato's "Give Your Heart a Break" together . They are followed by Blaine, who performs a heartfelt acoustic version of Katy Perry's "Teenage Dream ." Outside, Finn and Kurt confront Rachel and Blaine, and Rachel admits to kissing Brody, while Blaine admits to cheating on Kurt, leading to them singing No Doubt's "Don't Speak" as they return to Rachel and Kurt's apartment . </P> <P> The following day, Finn leaves without telling Rachel and returns to Lima, where he visits glee club director Will Schuester (Matthew Morrison) and breaks down in his arms . Finn is introduced to the new members of New Directions and suggests that they perform Grease for the school musical, which impresses Will . Will later tells Emma Pillsbury (Jayma Mays), that he has been accepted to the blue ribbon government panel to improve arts education nationwide, but that it requires him to move to Washington, D.C. for six months . Emma is reluctant to leave Lima for such a long time to accompany Will, and they argue, but do not break up . </P>

Who sings give your heart a break in glee