Endless Love by Diana Ross and Lionel Richie is featured in Ballad, the tenth episode of Season One. It is sung by Rachel and Will. They sing it while demonstrating what a ballad is. This song makes Rachel notice that Will has very pretty eyes and she starts to develop a crush on him. During the song, Rachel, Will and other New Directions members have thoughts which they express in voice-overs. Kurt thinks he could totally sing the song with Finn, but notes that the latter won't be getting the D
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