New Delhi, June 2 -- Taylor Swift has ended weeks of online speculation by confirming her involvement in Disney and Pixar's forthcoming animated sequel Toy Story 5, announcing that she has written and recorded an original song titled I Knew It, I Knew You.

The single is scheduled for release on 5 June, while the film is due to arrive in cinemas on 19 June.

The announcement follows a sustained wave of fan theories that emerged after mysterious billboards bearing the initials "TS" appeared in several cities, alongside imagery strongly associated with the Toy Story franchise.

She shared the news with the caption, "It's a *Toy* Story �� You knew it! My new original song "I Knew It, I Knew You" for Disney and @pixar's @toystor...