Black Box

Black Box is the fifth studio album by South Korean girl group Brown Eyed Girls. The album was released on July 29, 2013. The song "Recipe" was released on July 9 as a digital single. The song "Kill Bill" was used as the promotional song.

The name Black Box was used for the album since it is an album that recorded their journey just like a black box records things. Just like their teaser photos, they tried to ditch their strong image for a lighter and more feminine image. Title track "Kill Bill" has taken from Quentin Tarantino's film of the same name as a motif, which is about the revenge on a playboy.