The Troggs are an English band whose place on this list comes with a real caveat, because they were anything but a one-song act in their day. Pioneers of garage rock and an acknowledged influence on punk, they scored a run of 1960s hits, and one of their songs, "Love Is All Around", later became a global smash all over again as a cover.
But on streaming, their audience gathers around one primal anthem. "Wild Thing", released in 1966, is a raw, three-chord blast of garage rock that became a worldwide hit and one of the most covered rock songs ever.
On streaming, "Wild Thing" sits near 133 million plays, while their next most-streamed track, "Love Is All Around", trails at around 25 million. That puts the ratio above 5, over our line.
So by our strict, numbers-only measure, The Troggs register as a certified one-hit wonder, and we flag the caveat firmly. This was an influential band with several genuine hits to their name. It is only that one snarling, elemental anthem has pulled far enough ahead on streams to tip the maths, standing well above the rest of their catalogue.