常見問題：
問：4. Q: What was Secret's debut song? 答： A: Secret's debut song was "I Want You Back," released in 2009.
問：7. Q: Has Secret released any albums? 答： A: Yes, Secret has released several albums, including "Moving in Secret," "Secret Time of the Day," and "Letter from Secret."
問：2. SONAMOO的成員有哪些人？ 答： SONAMOO的成員包括賢智、秀彬、潤智、娜璉、多潤和宜珍。