Why Elon Musk changed his X name to 'Kekius Maximus'

Tesla CEO and world's richest man Elon Musk, who is known for his quirky and out-of-the-box antics on social media, has now updated his X (formerly Twitter) account by changing his name. Musk is now known as "Kekius Maximus" on the social media platform and has also replaced his profile picture with the popular "Pepe the Frog" meme. But why has Musk changed his name on X?