Sweet Caroline is a 1969 Neil Diamond song that became a stadium and karaoke singalong staple, and streamer xQc, known for his loud, high-energy broadcasts on Twitch, has turned its chorus into a recurring hype moment. Short clips of his enthusiastic, off-key singing spread through stream highlights, TikTok edits and soundboards, where the contrast between the wholesome classic and his chaotic delivery made it instantly reusable. It endures because the melody is universally recognised, so even a few seconds signals celebration without any explanation.