Perfume will release a new album, "Favorites (Selected by Perfume) / Cold Sleep," on December 23.

The album had been in the works before Perfume entered their current "cold sleep" hiatus and will feature songs personally selected by the group's three members from throughout their career.

The collection will be divided across three discs: "Side A," "Side K," and "Side N," featuring selections by a-chan, Kashiyuka, and Nocchi, respectively. The full track list and additional details will be announced at a later date.

The announcement comes on September 21, the anniversary of Perfume's major-label debut. The group also announced their "cold sleep" on this date last year.