Right now the most-sung songs on this chart are Creep (Radiohead), I Want It That Way (Backstreet Boys), No Scrubs (TLC). Ranked by real karaoke plays on Singa and refreshed daily.
Updated
Selena has 4 songs on this chart, more than any other artist. 10 of these 100 songs are duets. 1992 has the most songs on this chart: 15.