Never Gonna Give You Up was released by Rick Astley in 1987, and two decades later it became the centre of the rickrolling internet meme, where a misleading link or promise sends the viewer to the music video instead. The prank spread through forums, video sites and social media because the song is cheerful, instantly recognisable and harmless, making the trick funny rather than mean. Variations like this one keep the format alive by adding a new false promise on top of the original joke.