ATT Members Profile: ATT Facts, ATT Ideal Type ATT (에이티티, Asian Twinkle Treasure) is a KPOP group under Broad Entertainment. ATT has 5 members: Seohee, Sebi, Seyeon, A Young and Yujeong. The group debuted on October 7th, 2015 with their song ”Temptation”. They disbanded in 2016. ATT Fandom Name: – ATT Official Fan Color: – … Continue reading ATT Members Profile