is an acronym, standing for  U biquitous  K orean  I nternational idol  S uper  S tar. The group consists of  Soohyun ,  Kiseop ,  Eli ,  Kevin ,  Dongho ,  Hoon  and AJ (the latter two joining the group in 2011). Their biggest hit was " Bingeul Bingeul " (2010) from their first