常見問題:
問:2. Q: How many members are there in Secret? 答: A: Secret originally had five members, but now consists of only four members after Song Ji-eun's departure.
問:4. Q: What was Secret's debut song? 答: A: Secret's debut song was "I Want You Back," released in 2009.
問:冰桶挑戰對ALS研究的影響是什麼? 答:冰桶挑戰成功地提高了公眾對ALS的認識,並為研究籌集了大筆資金,加速了對該疾病的研究進程。