Never Gonna Give You Up was released by British singer Rick Astley in 1987 and became a number one hit worldwide. Its second life began in 2007 when Rickrolling spread from 4chan as a bait-and-switch prank, replacing expected videos with the song's music video. The joke exploded on YouTube and in live events, making the cheerful chorus a universal sign for being trolled. Decades later the clip still works instantly because the melody is so familiar and the prank needs no explanation.