EXO is one of the third generation KPOP groups that has dominated the world. They debuted in 2011 with the single Mama. Although they had a setback with the departure of 3 members in the past, they have continued to succeed in their careers. If we look back at their debut era, all the members looked like baby faces and still cute. How would their transformation be until now? Let's take a look at these series of photos!