DaBaby, the American rapper, made Let's Go one of his most recognisable vocal trademarks, using it as a high-energy ad-lib across his music and performances. As short-form video grew, fans clipped the phrase and reused it on its own, stripping it away from any single song so it could work as a universal hype cue. That flexibility is why it spread through edits, reaction videos and gaming clips, where a familiar voice can instantly signal confidence, excitement or a punchline without needing context.