#RADIO: US Pop Radio #4. “Need To Know” (=) *peak* — Spins: 15.015 (+194) — Audience: 47.399 (+0.751) US Rhythmic Radio: #3. “Need To Know” (=) *peak: #1 for 3 weeks* — Spins: 5.368 (+7) — Audience: 15.609 (+0.142) US Overall Radio: #5. “Need To Know” (=) *peak* — Audience: 68.350 (+1.150) *A canção teve o terceiro maior ganho de audiência nas rádios gerais dos Estados Unidos hoje. 310 views17:30