#RADIO: US Pop Radio #8. “Need To Know” (=) *peak* — Spins: 11.624 (+217) — Audience: 37.672 (+0.728) US Rhythmic Radio: #1. “Need To Know” (=) *3rd day at #1* — Spins: 5.839 (+82) — Audience: 16.392 (+0.408) US Overall Radio: #10. “Need To Know” (=) *peak* — Audience: 59.010 (+1.270) *A canção teve o quarto maior ganho de audiência nas rádios gerais dos Estados Unidos hoje. 351 views15:00