Fortnight (song)

"Fortnight" is a song by the American singer-songwriter Taylor Swift featuring the American musician Post Malone. It was written by the artists alongside Jack Antonoff, who produced it with Swift. "Fortnight" is a 1980s-inspired synth-pop, downtempo, electropop, adult contemporary, and new wave ballad built around a steady, pulsing synth bassline, concluding with a bridge-like outro blending Swift and Malone's vocal harmonies. The lyrics describe an emotionally impactful romance that lasts for two weeks: a woman in an unhappy marriage rekindles with a married ex-lover, and the two vow to escape to Florida.