Group StayC’s ‘Question Mark’ certification shot was released. On the 26th, two photos were posted on Naver NOW’s official SNS. In the released photos, STAYC Sumin, Sieun, Isa, Se Eun, Yoon, J, who visited the Naver NOW audio show ‘Question Mark’ studio, were included. STAYC, who appeared on Naver NOW’s ‘Ravi’s Question Mark’, which began broadcasting on the 25th, told various stories. He also showed off the live stage of the song ‘LIKE THIS’ from the debut album ‘Star To A Young Culture’. STAYC is planning to continue active activities with their debut song’SO BAD’ released on the 12th.