Fergie released London Bridge in 2006 as the lead single from her solo debut, The Dutchess, and the track became a defining mid-2000s pop hit. The short Oh Snap moment was later lifted from the song and shared as a standalone reaction clip on soundboards and in short-form videos, where its brief, confident delivery made it easy to reuse. It remains popular because it instantly signals surprise or sass without needing context, lyrics or a longer musical build.