Miracles in December (Korean: 12월의 기적; Chinese: 十二月的奇迹) is the overall second EP by South Korean-Chinese boy band Exo. It was released by S.M. Entertainment on December 9, 2013. Presented as a special winter album,Miracles in December is a follow-up to the group's first studio album XOXO, which was released in June 2013. Like all of the group's music, the EP has Korean and Chinese versions. The EP is also the group's second release as well as first EP to be promoted extensively being as a combined group. Its singles were "Miracles in December" and "Christmas Day".

"Miracles in December" attracts many positive reviews and commercial success.

The Korean version was ranked number two in Gaon Singles Chart and at number three in Korea K-Pop Hot 100, as to the Mandarin version, it was ranked number nine in Baidu Weekly Music Chart and led Gaon International Singles chart.

"Miracles in December" was chosen as the title track and first single of the extended play, and along with "Christmas Day" was presented live on several local musical performances and concerts during the promotional cycle.

In early November 2013, EXO's management agency, S.M. Entertainment, announced Exo would be holding a joint concert, titled "Christmas Wonderland", with f(x) from December 24 to 25. On December 3, a 2-minute medley clip for the Korean and Mandarin-language versions of the Miracles in December EP were released. On December 4, the music videos for "Miracles in December" were unveiled on YouTube.

Released in two languages, Exo-K, Exo's Korean-language sub-group, recorded the EP's tracks in Korean while Exo-M, the Mandarin-language sub-group, performed the same songs in Mandarin. A pop ballad with classical piano accompaniment, the lead single "Miracles in December", was written by Andreas Stone Johansson and Rick Hanley. However, the song was only performed by four Exo members: Byun Baekhyun, D.O., and Chen recorded the song in Korean, while Baekhyun, Chen, and Luhan recorded it in Mandarin. Special performances by all four (Baekhyun, D.O., Chen, and Luhan) members, with Lay miming the piano, were often performed on made-for-TV live music programs such as Inkigayo and Music Bank.

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