"This is one of the most fun days of my life," the superstar says in a new behind-the-scenes video.
Taylor Swift attends the 'Toy Story 5' Los Angeles World Premiere at Dolby Theatre in Los Angeles, on June 9, 2026.
Kevin Mazur/Getty Images for for TAS Rights Management
Taylor Swift had a lot of fun toying around with her Toy Story 5 anthem, “I Knew It, I Knew You,” with the singer-songwriter revealing in a new behind-the-scenes clip on Instagram that she wrote, recorded and produced the track with collaborator Jack Antonoff in just eight hours.
“It’s been kind of a hectic day,” she tells the camera in the video posted Thursday (June 18). “At 11 a.m., went to see Toy Story 5, got so inspired. Got the songwriter zoomies. Went home, wrote the end credit song for Toy Story 5.
