Girls

Girls (stylized as GIRLS) is the second extended play by EXO-CBX, and the first to be released in Japanese. It was released on May 24, 2017 by Avex Trax. The EP feature seven tracks in total including the Japanese version of their debut Korean single "Hey Mama!" and a bonus track that will be included only in the first edition of the album.

Background and release
On March 10, 2017, it was revealed via a livestream that the subunit would have their Japan debut later that year, sometime in May. On April 1, it was announced that EXO-CBX will release a Japanese EP entitled Girls on May 24, 2017. On April 26, It was revealed that the mini album will be released in four versions, CBX, Chen, Baekhyun, and Xiumin versions. The track list of the extended play were released also on the same day. On April 28, a teaser of the title track "Ka-CHING!" was released. It was revealed that the song will be used as an ending theme for the "Nihon Terebi" show. On May 1, a short music video of the title track "Ka-CHING!" was released. Two additional, group teaser images also were released on the same day. On May 15, a highlight medley, featuring previews of the album's tracks was released. The EP was officially released on May 24.

Live performance
EXO-CBX performed "Ka-CHING!" and "Hey Mama!", the Japanese version, for the first time at the 2017 Girls Awards on May 3, 2017.

Commercial performance
The special edition (only available for EXO-L Japan) version of Girls was sold out in less than an hour upon its release, making the sub-group the fastest selling K-pop group in Japan, breaking EXO's record.

Girls debuted at No. 2 on the Oricon Daily Albums Chart and selling 26,541 copies on it's first day of release.