常見問題：
問：1. Q: What is Secret? 答： A: Secret is a South Korean girl group formed by TS Entertainment in 2009.
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：全孝盛有參與過電視劇的演出嗎？ 答：全孝盛曾參與過《我們結婚了》、《惡魔的戀人》等電視劇的演出。