Pinkfong is a South Korean educational entertainment brand rather than a conventional artist, and it is responsible for one of the most-streamed and most-watched pieces of music ever made. "Baby Shark", its bouncy 2016 version of a children's chant, became a global phenomenon, its video growing into one of the most-viewed clips in YouTube history and its "doo doo doo" hook lodging permanently in the heads of parents everywhere.
The brand has released countless other children's songs, but nothing comes within light-years of that one cultural juggernaut, which transcended kids' music to become a genuine pop-culture event.
On streaming, "Baby Shark" sits near 983 million plays, while its next most-streamed track trails at around 55 million. That sends the ratio above 17, far past our 5.0 line.
By our measure Pinkfong is a certified one-hit wonder, in the unusual context of a children's-music label. The verdict is almost beside the point for a brand whose business is a vast library of educational songs, but in pure streaming terms, one inescapable shark anthem stands utterly alone. No other children's song has ever crossed into the mainstream on anything like this scale.