"She" is a song by British singer-songwriter Elvis Costello, released in 1979 as part of his album "Armed Forces." The original key of the song is D major. Costello wrote and performed the song, which was composed by himself. The song was inspired by a disagreement he had with his wife at the time, who later became his ex-wife. Interestingly, "She" was also featured in the 1999 romantic comedy film "Notting Hill," gaining widespread popularity. The melody of the song is characterized by its melancholic and introspective tone, accompanied by Costello's distinctive vocals.