It has been announced that Perfume will release a new CM song in parnership with the alcoholic beverage company "Kirin freezing". The song title is currently unknown. I guess we all will just have to wait until February 2nd to find out!

From Official Site:
｢キリンチューハイ 氷結｣のCMにPerfumeの新曲がタイアップ決定!! - CM/OTHER

2月2日(水)からO.A.される｢キリンチューハイ 氷結｣のCMに
Perfumeの新曲(タイトル･リリース未定)がタイアップ決定!!
詳細は2月2日(水)に発表致します。

乞うご期待!!