Taylor Swift has endorsed Kamala Harris for president just moments after the end of her presidential debate against Donald Trump.

In an Instagram post on Tuesday night, the pop star announced the news alongside a photo of her with a cat and signed it "Childless Cat Lady", a reference to comments made by Donald Trump's vice-presidential candidate JD Vance.

The singer said she was in part motivated to share her voting decision with the public after an AI image of her falsely endorsing Trump was posted on his website.

Swift is one of several celebrities to endorse Harris, including singers John Legend and Olivia Rodrigo, actor George Clooney and director Spike Lee.