For Taylor Swift, Toy Story 5 was so good, she almost immediately found the inspiration for an original song.

The Grammy winner recently shared a video from the “hectic day” that she wrote and recorded the song ‘I Knew It, I Knew You’ for the movie’s soundtrack the same day she screened it for the first time.

“At 11am, I went to go see Toy Story 5, got so inspired, got the songwriter zoomies, went home, wrote the end credit song for Toy Story 5,” she said in a video from the studio.

Swift continued, “We have now produced it, and I’m doing vocals. It’s 6:57pm. In two hours, Bob Iger and Tom from Pixar are coming to hear it. We have not recorded it yet, and I think this is one of the most fun days of my life.”

After some cryptic billboards went up last month teasing the collab, Swift debuted ‘I Knew You, I Knew Me‘, which quickly broke records, along with a music video starring Joan Cusack’s Jessie. During a surprise performance at the Disney Pixar movie’s world premiere, Swift was joined by Randy Newman for a duet of his hit song ‘You’ve Got a Friend in Me’ from the original Toy Story in 1995.

Premiering June 19 in theaters, Toy Story 5 sees Bonnie’s toys—which formerly belonged to Andy—contending with the digital age as Lilypad, an electronic game tablet voice by Greta Lee, gets unboxed. Jessie is said to play a major role in this sequel.

Also joining the voice cast is Conan O’Brien as the toilet training tech toy Smarty Pants, Craig Robinson as GPS hippo toy Atlas, Shelby Rabara as the excitable camera toy Snappy, Matty Matheson as the tech-fearing toy Dr. Nutcase, Scarlett Spears as sweet and shy 8-year-old Bonnie and Mykal-Michelle Harris as independent Armenian 8-year-old Blaze, who loves animals.

In addition to Cusack’s Jessie, the returning cast includes Tom Hanks as Woody, Tim Allen as Buzz Lightyear, John Ratzenberger as Hamm, Wallace Shawn as Rex, Blake Clark as Slinky Dog, Annie Potts as Bo Peep, Bonnie Hunt as Dolly, Melissa Villaseñor as Karen Beverly, Kristen Schaal as Trixie and Keanu Reeves as Duke Caboom.