"Forever" is a song written and recorded by British singer Charli XCX from her fourth album, How I'm Feeling Now (2020). Charli XCX produced the song with A. G. Cook and BJ Burton, and it was released on 9 April 2020, by Atlantic as the lead single from the album. "Forever" is a pop, synth-pop, and psychedelic song that features dark wave and electronic influences.

"Ringtone (remix)" is a song by American experimental musical duo 100 gecs, composed of Dylan Brady and Laura Les, from their remix album 1000 Gecs and the Tree of Clues (2020). The song features vocals from British singer Charli XCX, American rapper Rico Nasty, and British singer Sarah Bonito of the indie pop band Kero Kero Bonito. The song is a remix of "Ringtone" from 100 Gecs' debut studio album 1000 Gecs (2019). The song's production is glitchy with "80's video game-inspired blips" and uses heavy bass and Auto-Tune.