EXO, which is derived from “EXOPLANET”, a term denoting the planets outside the solar system, is a 9-member K-pop boy band. After making their anticipated debut in April 2012, EXO is now one of the “biggest K-POP boy band in the world”. Forbes noted their immense popularity on its “Korea Power Celebrity List”, which named them one of the Top 5 K-pop groups in 2014, 2017, and 2018.