Never Gonna Give You Up was released by Rick Astley in 1987 and became a worldwide pop hit. Two decades later, the song became the centre of the Rickroll, an internet prank that began on forums in 2007 where a promising link unexpectedly opened the music video instead. The joke spread through YouTube, social media and livestreams, and its appeal has lasted because the opening is instantly recognisable. Short, degraded copies like this one echo the early web era when tiny, low-bitrate files were shared widely online.