Eiffel 65, an Italian Eurodance group, released Blue (Da Ba Dee) in 1998, and its nonsense chorus quickly became the song's most famous part. The track topped charts in many countries and stayed in pop culture through radio, parties and later internet remixes. As short clips spread on social media, the da ba dee hook became a standalone meme sound, easy to recognise even without the rest of the song. Its simple melody and playful absurdity keep it useful for creators who want an instant burst of late 1990s nostalgia.