back number have revealed the short PV for their new song "HAPPY BIRTHDAY."

"HAPPY BIRTHDAY" is the theme song for TBS' drama 'Hajimete Koi wo Shita Hi ni Yomu Hanashi' and will be released as the band's new single on February 27. Banba Shuichi, who directed the PV commented, "Your birthday starts when the date changes and ends when the date changes. It's a PV that shows one's desire of turning back time." 

Source: natalie