SEE ALSO: DAY6 take the stage in 'Welcome to the Show' live MV

DAY6 will be making their Japanese debut approximately 2 years and 6 months after their Korean debut, with their 1st single album 'If ????????'. The track is also set to be the theme song for upcoming Japanese drama 'Repeat' which will premier this January 11 at 11:59PM JST. 

The interior of the Tower Records store in Shibuya, Japan has been decked out with DAY6 in sync with the OST reveal. The single album will be out officially on March 14.