Rookie girl group STAYC's Sieun and Yoon are "So Bad" in their individual debut teaser images!

Expected to debut this coming November 12 at 6 PM KST with their 1st single album 'Star To A Young Culture', STAYC mark the first ever rookie girl group hand-produced by hit producer duo Black Eyed Pilseung. The members are Sieun, Yoon, Sumin, Isa, Seeun, and J. 

If you're interested in following a bold new rookie girl group, check out STAYC's Sieun and Yoon below! Also, make sure to look forward to more of STAYC's "So Bad" debut teasers!