Taylor Swift is stepping into the world of Toy Story for the first time, revealing she has written an original song for Disney and Pixar’s upcoming Toy Story 5.

I Knew It, I Knew You was written and produced with longtime collaborator Jack Antonoff and will be released globally on June 5 across all major streaming and download platforms.

The single will also appear on the official Toy Story 5 soundtrack when it arrives on June 19.

Toy Story 5 characters Jessie, Woody, and Buzz Lightyear. Photo: AAP

Swift has also launched three exclusive CD editions through her official website, each featuring a different version of the song — the film version, an acoustic take, and a piano rendition.

Swift’s track draws directly from Jessie’s storyline in the film, tapping into the cowgirl’s emotional highs and lows.

Swift leans back into the country textures that shaped her early career, while still weaving in the pop sensibilities and narrative detail she’s known for.

Jessie, who first galloped into the franchise in Toy Story 2, struck an immediate chord with Swift when she watched early scenes from the new instalment, prompting her to dive straight into writing.

“It’s a Toy Story. You knew it! My new original song ‘I Knew It, I Knew You’ for Disney and Pixar’s Toy Story 5 will be yours on June 5 … I’ve always dreamed of getting to write for these characters who I’ve adored since I was a five‑year‑old kid watching the first Toy Story movie … I wrote this song as soon as I got home from the screening. Sometimes you just know, right?” she wrote to announce the song on Instagram.

Director and screenwriter Andrew Stanton said Swift’s instinctive understanding of Jessie’s emotional state made the collaboration feel “meant to be”.

He said Swift’s song felt so naturally tied to the film that it was “like a long‑lost family member” returning to the franchise.