Billboard takes you inside Tuesday night's Hollywood premiere, where Swift's "I Knew It, I Knew You" live debut was just part of the story.

Singer-songwriter Taylor Swift made a surprise appearance at the premiere of “Toy Story 5” in Hollywood on Tuesday (June 9).

Taylor Swift performs her "Toy Story 5" song "I Knew It, I Knew You," before being joined by Randy Newman to duet franchise theme "You Got a Friend in Me." (June 10)

Taylor Swift made a surprise appearance at the world premiere of "Toy Story 5" on Tuesday night in Los Angeles. Swift didn’t do step and repeat but showed up for a big cast photo. Her attendance at the Dolby Theatre festivities comes on the heels of the release of her new song on the soundtrack,

Taylor Swift gets standing ovation singing "I Knew It, I Knew You" at the "Toy Story 5" premiere and announces this sequel is her favorite "Toy Story." Lawmakers push to end federal tax on Social Security benefits Trump launches strikes against Iran after downing of US army helicopter Russia's military hackers targeted home routers across 23 states.

Taylor Swift may have written her latest song for Toy Story 5, but the numbers it's showing on streaming are anything but child's play. Three of the world's biggest DSPs all separately announced on Friday (June 5) that "I Knew It,

Taylor Swift is revisiting her childhood memories with a little help from Pixar. The singer-songwriter released a new country song last week, titled "I Knew It, I Knew You," from the Toy Story 5 soundtrack.

The Grammy winner released her new original song, titled “I Knew It, I Knew You,” for the upcoming “Toy Story” movie, which debuts in theaters June 19.