It's been announced that GReeeeN is singing the CM song for au's latest 'Santaro' series that started airing on New Year's Day. 

The CM stars Matsuda Shota, Suda Masaki, Arimura Kasumi, Nanao, Kawaei Rina, Kamiki Ryunosuke, Matsumoto Honoka, and Nakagawa Taishi. GReeeeN's new song "Issho ni Yukou" is an arrangement of the baseball anthem "Take Me Out to the Ball Game" and Bach's "Jesus bleibet meine Freude." It will be digitally released on Utapass on January 9, and its music video will be revealed via au's website.

Source & Image: natalie