The claim that Taylor Swift and Travis Kelce paid $3.5 million to rent out Disney World for a day, is satire. According to Snopes, the website, Mouse Trap News, is a parody/satire website, which is where this claim was made, as well as on their TikTok page, resulting in tens of thousands of views. Further, the image on the original article, was found to be AI-generated after Snopes did a reverse Google Image search, confirming so. Additionally, to confirm, I looked at the Mouse Trap News website, and their "about" tab states: "Mouse Trap News is the world’s best satire and parody site. We write fake stories about Disney Parks stuff. From Disney Park announcements to Disney Hotel and resort news to made-up Disney partnerships, you can be assured that anything you read here is not true, real, or accurate, but it is fun"
https://www.snopes.com/fact-check/kelce-swift-rent-disney-world/
https://mousetrapnews.com/about/