The superstar, who wrote original song "I Knew It, I Knew You" for the new movie, walked the carpet on Tuesday night in L.A.

Taylor Swift attended the 'Toy Story 5' world premiere in support of her new soundtrack song 'I Knew It, I Knew You.'

The superstar, who wrote original song "I Knew It, I Knew You" for the new movie, walked the carpet on Tuesday night in L.A.

The singer, 36, put on a leggy display in a chic off-the-shoulder embellished Erdem dress. The Pixar sequel features a brand-new original track from the superstar, titled I Knew…

See photos of Taylor Swift walking the red carpet for the 'Toy Story 5' L.A. premiere.

Taylor Swift made a stop at the Dolby Theatre for the premiere of 'Toy Story 5' on Tuesday night in Los Angeles.

‘It means the world to me to be a small part of these films,’ said Swift

Billboard takes you inside the 'Toy Story 5' world premiere, where Taylor Swift's "I Knew It, I Knew You" live debut was just part of the story.

Taylor Swift joined the Toy Story 5 cast at the film premiere in LA, after releasing I Knew It, I Knew You for the soundtrack.

At the Los Angeles premiere of Toy Story 5, Taylor Swift gave a surprise performance. The film releases in theatres on June 19.

Swift sat at a piano in a full-length gown on stage at the Dolby Theatre and sang “I Knew It, I Knew You,” the song she wrote for the new “Toy Story” installment.

En la premiere de la película en Los Ángeles, la artista cantó “I Knew It, I Knew You” y causó furor entre los fanáticos

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La cantante debutó con el tema inspirado en el “I Knew It, I Knew You”

"Toy Story 5" opens in theaters on Friday, June 19.

Durante el preestreno de la nueva película de Toy Story 5, la cantante Taylor Swift sorprendió al público en Los Ángeles al interpretar su canción “I Knew It, I Knew You”. Así se…

Taylor Swift was back behind a piano at the 'Toy Story 5' premiere & the 'Billboard Pop Shop Podcast' was inside Dolby Theatre for the surprise set.