The prompt is to write about a song that describes me. I really don’t know how this works. Is it acceptable to write about a song that happens to have one explicit word? It’s litterly just a Lorde song.
The choice of song is fine. What is important is how you express how the song describes you.
As an aside, when writing an application essay, avoid describing something by using the word “literally.” But if you do, please spell it correctly.