JLS revenue for the last year amounted to 113.40 B KRW, the most of which — 91.07 B KRW — came from its highest performing source at the moment, School, the year earlier bringing 88.81 B KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought JLS 111.93 B KRW, and the year before that — 109.74 B KRW.