I.O.I『Suddenly』第四天Spotify单日未过滤流媒逆跌突破3️⃣4️⃣万，继续创下新高🎉

Day 1: 130,673Day 2: 220,953Day 3: 260,036Day 4: 346,806 (+86,770) 🔺

Total: 958,468 IOI初舞台