Defying Gravity from Wicked is featured in Wheels, the ninth episode of Season One. It is sung by Rachel and Kurt during New Directions' first "diva-off" because Mr. Schuester thinks about using the song at Sectionals. At first, he gives the part to Rachel, but Kurt's father, Burt, learns that Kurt wanted the solo, so he complains to Principal Figgins, and Will allows Kurt to audition for the solo. However, Kurt throws the competition by blowing the high F so that Burt won't have to endure more anti-gay calls or worse and he lets Rachel Kurt and Rachel singing Defying Gravity
win. This song is the final track on Glee: The Music, Volume 1. The version covered is not the stage version but the pop version released by Idina Menzel.
Three different versions of the song were released: the regular version with both Rachel and Kurt, a Rachel-only version, and a Kurt-only version. The Kurt and Rachel solo versions were released as singles, but they were not on Glee: The Music, Volume 1 and were instead released on Glee: The Music, The Complete Season One.
Raymund Flandez of The Wall Street Journalpraised Rachel'sDefying Gravity audition, which he wrote: "leaves us wanting for more".
Trivia
This is the first released Glee song which features Kurt.
The story of this song is based on an experience Chris Colfer had in high school, when despite his repeated requests in several years, his choir teacher refused to allow him to sing the song due to his gender, since Elphaba is a female character. However, his grandma allowed him to perform it at a church.
Rachel says that Defying Gravity is her ringtone.
This performance was the First "Diva Off" of the series