Yung Joc is an American rapper from Atlanta who became a face of the mid-2000s snap movement with one breezy, motorcycle-revving hit. "It's Goin' Down", released in 2006 with producer Nitti, paired a minimal, hypnotic beat with an instantly imitable hook and dance, and it climbed near the top of the US Billboard Hot 100, becoming one of the defining sounds of Atlanta that year.
Joc stayed in the public eye, later as a radio host and reality-television personality, but no other single matched the reach of his breakthrough, and the rest of his catalogue sits well behind it.
On streaming, "It's Goin' Down" sits near 189 million plays, while his next most-streamed track trails at around 34 million. That puts the ratio above 5, over our line.
So by our strict, numbers-only measure, Yung Joc registers as a certified one-hit wonder, and we note it is a borderline case. He had other charting moments and has stayed a recognisable name well beyond music. It is simply that one laid-back, endlessly copied snap anthem broke through widest, and on streams it has pulled just far enough ahead of everything else he released.