Lalala was released in 2019 as a collaboration between Canadian rapper bbno$ and producer Y2K, and it quickly became a viral TikTok sound thanks to its simple, catchy hook. Short clips of the chorus spread through dance videos, memes and edits, where the repetitive lalala vocal became shorthand for playful confidence. Its short length and instantly recognisable melody have kept it in regular use years later, especially in short-form edits that need a quick, upbeat audio cue without a long intro.