One Pound Fish began in 2012 as a market chant by Pakistani fishmonger Muhammad Shahid Nazir at Queen's Market in London, used to attract customers to his stall. A customer filmed and uploaded the performance to YouTube, where it spread rapidly and was turned into a recorded single that charted in the United Kingdom that December. The song later found a second life on TikTok and soundboards, where its simple price hook became shorthand for bargains, markets and cheerful selling, long after the original video first went viral.