Divya Kumar is an Indian playback singer whose voice has featured across a wide range of Hindi and South Indian film songs. His presence on this list is a case of measurement rather than judgement: he is a working, in-demand singer with many credits, but his global streaming audience concentrates heavily on one track.
That track is "Sun Saathiya", a soaring romantic duet from the 2015 dance film ABCD 2, which became a hugely popular Bollywood song and by far his most-streamed recording.
On streaming, "Sun Saathiya" sits near 207 million plays, while his next most-streamed track trails at around 31 million. That puts the ratio above 6, past our 5.0 line.
So by our strict, numbers-only measure, Divya Kumar registers as a certified one-hit wonder, and we flag the caveat clearly. This is a prolific playback singer whose work spans many films, the kind of artist whose voice listeners know without always knowing his name. It is simply that one widely loved film song drew a far larger streaming audience than the rest of his catalogue, pulling well ahead of everything else he has recorded.