Fortnight debuted in the Official New Zealand Top 40 Singles on 29 April 2024. It has been in the Top 40 Singles for four weeks with a highest position of #1. There is one song by Taylor Swift feat. Post Malone in the Top 40 Singles with one reaching Number One.

B.O.B. feat. Taylor Swift
Ed Sheeran And Taylor Swift
Justin Bieber feat. Post Malone And Clever
Lorde feat. Khalid, Post Malone And SZA
Noah Kahan And Post Malone
Post Malone
Post Malone And Doja Cat
Post Malone And Swae Lee
Post Malone And The Weeknd
Post Malone feat. 21 Savage
Post Malone feat. DaBaby
Post Malone feat. Morgan Wallen
Post Malone feat. Ozzy Osbourne And Travis Scott
Post Malone feat. Quavo
Post Malone feat. Roddy Ricch
Post Malone feat. Ty Dolla $ign
Post Malone feat. Young Thug
Taylor Swift
Taylor Swift And The Civil Wars
Taylor Swift feat. Bon Iver
Taylor Swift feat. Brendon Urie
Taylor Swift feat. Ed Sheeran
Taylor Swift feat. Fall Out Boy
Taylor Swift feat. Florence And The Machine
Taylor Swift feat. HAIM
Taylor Swift feat. Hayley Williams
Taylor Swift feat. Ice Spice
Taylor Swift feat. Kendrick Lamar
Taylor Swift feat. Lana Del Rey
Taylor Swift feat. Shawn Mendes
Tiesto And Dzeko feat. Preme And Post Malone
ZAYN And Taylor Swift