The Moonmelon, also known as the Asdus watermelon, is one of the most famous early internet hoaxes, featuring a vibrant blue-fleshed watermelon that allegedly changes its flavor profile from citrus to sweet depending on how it’s consumed. First appearing around 2011 on social media platforms like Pinterest and Facebook, the image was quickly debunked as a clever Photoshop manipulation of a standard watermelon slice. Despite being a known fake, the 'Moonmelon' continues to circulate as a nostalgic relic of early viral misinformation and serves as a popular template for surreal humor or commentary on how easily people can be fooled by edited photos online.