B'z Itsuka no Merry Christmas Listen online B'z - Itsuka no Merry Christmas Facebook WhatsApp Viber Telegram B'z - Itsuka no Merry Christmas played on air: J1 Radio Japan's hottest hits Other artist tracks B'z: B'z - Red B'z - Kimi to Nara B'z - Unite B'z - Sleepless B'z - Season End B'z - Uchoten B'z - Midarechiru B'z - Seimei B’z - Survive B'z - Dark Rainbow B'z - STARS B'z - Get Wild