Taylor Swift is officially joining the soundtrack of 'Toy Story 5' with a new original song titled 'I Knew It, I Knew You.' This announcement comes after a period of speculation fueled by a countdown on her website and promotional billboards worldwide. The song, set to be released on June 5, is her first since the successful 'The Life of a Showgirl.' Collaborating again with producer Jack Antonoff, Swift's new track is inspired by the character Jessie, whose journey began in 'Toy Story 2.' Director Andrew Stanton expressed how meaningful it was for Swift to write and perform this song, noting its deep connection to the 'Toy Story' narrative. Swift is not the first artist to contribute to a 'Toy Story' soundtrack; previous contributions include Sarah McLachlan and Chris Stapleton. Fans can also look forward to purchasing exclusive CD editions of the single, which will feature both an acoustic and a piano version. 'Toy Story 5' is scheduled for release in theaters on June 19.