EXO is a 9 member male group from South Korea. Out of the nine members, eight members are Korean and one is Chinese. EXO debuted on April 8, 2012 in Seoul, South Korea. Ever since debut, they have released 4 full-length albums along with repackage albums, as well as 4 winter special albums and 2 mini albums. EXO releases their main albums in two languages: Korean and Chinese. They have also released several Japanese EPs and one full length Japanese album. Their most well known hits, such as "Growl", "Call Me Baby", "Monster", and "KoKoBop" have all charted multiple first places shortly after their release. EXO is the first group to win "Album of the Year" for 5 consecutive years at Mnet Asian Music Awards. As well as the first musical group in Korea to sell out over a million copies of each of their full length albums, gaining their title "Quadruple Million Seller" from the government of South Korea. In Janurary of 2018, EXO became the first South Korean group to have their song played at the Dubai Fountain Show. In February of 2018, EXO was one of the only two k-pop artists that performed at the closing ceremony of Pyeongchang Winter Olympics. EXO has visited many cities and countries around the world, and have held 4 world tours since 2014. The members of EXO also act and model besides music. Chinese member LAY had acted in several Chinese dramas, taking both support roles as well as main actors. He has also released two solo albums in Chinese. D.O. is the most famous for his acting skills among many idols. Baekhyun is the co-director of Prive New York, a unisex clothing brand. The members Kai and Sehun are famous for their modeling in addition to their dancing.

The fans of EXO are called EXO-Ls, with the name meaning "EXO-LOVE". According to the official website for fans, the amount of fans has almost reached 4.5 million registered fans. Due to EXO's huge popularity, many companies hire EXO to endorse their brand of products, which usually leads to EXO-Ls crashing the website while trying to buy the products. In fact, for one of EXO's concerts in Seoul, tickets sold out in 4 seconds. A more recent example of fans crashing websites include fans crashing the Prive website when the brand launched its first products. Other than crashing websites, EXO-Ls have also done a lot of charity in the name of EXO and its members. Major fanbases have also promoted EXO in many ways. The most famous is probably BAIDU EXO BAR, a Chinese fanbase of EXO, made a promotional video that was played at the Burj Khalifa, the tallest building in the world. This made EXO the first faces outside of UAE's rulers to show up on the Burj Khalifa.