Amy (song)

[2][3] The song was first performed on August 12 at a secret charity show in Costa Mesa, California,[4][5] with Armstrong commenting he had written "Amy" the week before.

[7] The song is a mournful ballad incorporating the jazz-inspired styles of Winehouse through "stripped-back guitar work" and "sparse fingerpicking" reminiscent of folk rock,[8] doo-wop[9] and lounge music.

[10] Lyrically, the song serves as a cautionary tale[11][12] through its multiple allusions to Winehouse's "troubled" life and death,[9] and speaks about Armstrong's desire to have met the late singer.

[13][14] Because of its acoustic sound and mellow nature atypical of Green Day songs, "Amy" has been compared to "Good Riddance (Time of Your Life)".

[17][18] Rolling Stone described "Amy" as a "mascara-streaked soul ballad... where Billie Joe Armstrong makes like the skate-park Sam Cooke",[19] while Loudwire and Alternative Press stylistically compared the song to The Everly Brothers and Elvis Costello, respectively.