In the movie musical, Wicked, Ariana Grande’s Glinda sings often, yet the song that truly defines her, and gives audiences insight into her character, is “Popular.” First introduced in The Wizard of Oz as Glinda the Good, the Glinda in Wicked is self-obsessed, driven, and uniquely intelligent. Although she initially bullies her new roommate, Elphaba, the two women learn to love each other, despite their differences. More than that, Glinda tries to teach Elphaba how to be well-liked at a school (and in a world) where everyone seems to be against Elphaba at all times.

https://screenrant.com/wicked-popular-glinda-song-lyrics-explained/