Mr. Schuester splits the Glee Club into pairs to sing their favorite ballad, but when one kid gets sick, he's forced to step in and winds up in a sticky situation. Meanwhile, Finn and Quinn have to face the music when dinner with her parents (guest stars Gregg Henry and Charlotte Ross) goes awry. Musical performances include "Lean On Me", "Endless Love", "I'll Stand By You", "Young Girl", "Don't Stand So Close to Me", "Crush" and "(You're) Having My Baby".