Symphony was released in 2017 by British group Clean Bandit, featuring Swedish singer Zara Larsson, and became a major pop hit across Europe. The song returned to attention in 2024 when TikTok users began pairing its uplifting chorus with a brightly coloured dolphin image and captions sharing random, often embarrassing thoughts. The format spread quickly because the contrast was easy to copy and instantly readable, even without context. It remains used as a shorthand for dramatic feelings attached to small, silly moments that everyone recognises from daily life.