Crayon Pop made the announcement during the press conference for their '2014 First Chrome Family in Japan Concert' held at Stella Hall, Shinagawa Prince Hotel in Tokyo, Japan on October 4. Member Gummi expressed, "We are looking forward to our [Japanese] debut. We want to meet many fans in Japan."
A rep from their agency Chrome Entertainment also told Xports News on the 6th, "[Crayon Pop's Japanese] mini-album, which is set for release on November 19, consists of their previous hit songs in Korea as well as an unreleased song. Their official [Japanese] debut is planned for early next year."
Crayon Pop's twin subunit Strawberry Milk are also making their domestic debut on the 15th with their title track "OK"!