The Haim sisters and Taylor Swift are longtime friends, and in 2020 they teamed up for the first time on wax for Swift's Evermore
track "No Body, No Crime
In February 2021, Haim posted a black-and-white photo showing the three sisters standing in a gas station wearing matching wigs. Eagle-eyed Swifties noticed a petrol pump number 13 in the background and linked it with the pop superstar's favorite number.
The band teased fans a potential collaboration with Swift again on February 17, 2021 when they posted a Tik Tok with a snippet of "Gasoline." Listeners noticed there were some additional harmonies added in the chorus that sounded like the "Cardigan
The following day Haim released the extended edition of Women in Music Pt. III
, which included a remix of "Gasoline"
featuring additional vocals by Swift. Taylor tweeted, "Cancel the DNA test I'm the 4th Haim sister and this song is the only proof I need."