Secret behind Baek Ah Yeon's Music Bank stage

Zn (zinc) is 아연 (Ah Yeon) in Korean

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Instiz: Baek Ah Yeon's stage on today's Music Bank

- So witty and fun ㅋㅋㅋ

- ㅋㅋㅋㅋ Are they in natural sciences?

- I'm in liberal arts but I understood it... I'm so proud of myself

- I'm gonna debut as Nickel so that I can use Ni

- Science concert ㅋㅋㅋ

- She's Baek Ah Yeon, they should've put the letters in white

- 100 Zn