XOXO is the debut studio album by South Korean-Chinese boy band Exo, released on June 3, 2013 by SM Entertainment and distributed by KT Music. The album is a follow-up to the group's debut EP, Mama (2012). The album was released in two versions – a Korean "Kiss" edition and a Chinese "Hug" edition. Two singles were released from XOXO: "Wolf" and "Growl", the latter being the lead single off the album's repackaged version released on August 5, 2013. Both singles went to chart in the top ten of the Gaon Singles Chart, and "Growl" peaked at number 3 on the Billboard Korea K-Pop Hot 100. The album won Album of the Year at the 2013 Mnet Asian Music Awards and sold over 1 million copies, entering the list of the best-selling albums in Korea . The album reached over 300,000 collective pre-orders, and peaked at number one on the Billboard World Album Chart a week after release. As of December 2013, the Korean and Chinese versions of the album, as well as their respective repackaged versions, have collectively sold over 1,070,000 copies, making it the best-selling album of the year in the K-pop industry. With over a million copies sold, XOXO also became Korea's best-selling album in 12 years.
The album's lead single, "늑대와 미녀" ("The Wolf and the Beauty") was co-written and produced by Dsign Music.