They are the most recent K-pop group to sell over a million physical copies of a full album and the last group to do so prior to the establishment of digital music stores, having sold over 1.7 million copies of Chapter 4, before EXO reached the milestone in 2013.
They are the most recent K-pop group to sell over a million physical copies of an entire album and the last to do so before the introduction of digital music stores, having sold more than 1.7 million copies of Chapter 4 prior to EXO reaching that mark in 2013.