| Plot | Song | Original Artist |
| The song New Directions perform onstage in the pilot episode to convince Will not to leave the school | |
| Quinn auditions for glee club with this song | |
| The Acafellas perform this song at an event to impress Josh Groban | |
| Mercedes sings this after Kurt rejects her advances | |
| When Kurt is caught dancing to this song by his father, he claims it is a football exercise | |
| When April Rhodes is first introduced to the glee club, she sings this song | |
| After taking pseudoephedrine tablets, the girls perform a mash-up of this song and 'Halo' | |
| New Directions sings this song to support Quinn after the whole school finds out she's pregnant | |
| When Rachel says she needs a strong man who can perform a solo, Puck sings this song and dedicates it to her | |
| In support of Artie, New Directions stages the entire routine to this song in wheelchairs | |
| When Finn's mom catches him singing this song to a sonogram, she realizes Quinn is pregnant | |
| When Will purchases wigs for New Directions, he tries out hairography by doing a mash-up of 'Hair' and this song | |
| New Directions sings this song in a mattress commercial | |
| At sectionals, New Directions finds their set list has been leaked, forcing them to change their set and open with Rachel singing this solo | |
| When Rachel meets Jesse St. James at a music library, they sing this duet | |
| When Kurt and Mercedes give Sue a makeover, they also recreate the music video for this song | |
| After April purchases the new auditorium for the glee club, she sings this with New Directions in honor of her launching an all-white production of The Wiz | |
| Will sings this as an example of a bad song that the club can rehabilitate | |
| Santana and Mercedes sing this duet while fighting over Puck | |
| Will and Bryan Ryan audition with this song for a local production of Les Miserables | |
| Kurt and the girls create costumes inspired by Lady Gaga and perform this song | |
| Will sings this song to try and seduce Sue in order to stand her up and humiliate her | |
| At regionals, New Directions performs a mash-up of Lovin', Touchin', Squeezin' and this song | |