EXO is a South Korean-Chinese boy band based in Seoul, EXO debuted on April 8 2012 with their debut single MAMA, EXO debited with 12 members (8 korean members and 4 chinese members), Exo is seperated in to two sub-unit EXO-K with 6 korean members and EXO-M with 4 chinese members and 2 korean members.
EXO was formed by SM entertainment on 2011 but debuted on 2012
