Eiffel 65 — "Blue (Da Ba Dee)"
The Italian Eurodance group Eiffel 65 and their inescapable hit "Blue (Da Ba Dee)," released in 1998 and an unstoppable global phenomenon in 1999. The auto-tuned "I'm blue, da ba dee da ba di" hook became the defining one-hit wonder of the turn-of-the-millennium era.