Kingdom Hearts fans are finding the fact that Twitter is rebranding to "X" hilarious, and are making jokes about it on the social media platform. The rebrand is the latest change to the website brought in by CTO Elon Musk. Once the announcement was made, however, many users were quick to voice how much they adore the iconic Twitter brand, and how changing it to just the letter "X" may be a bad move on Musk's part.