Block B releases new teaser images for upcoming single 'Yesterday' 

Block B releases new teaser images for upcoming single \'Yesterday\'

Block B has released the teaser images featuring each member for their upcoming single "Yesterday."

The teaser images of "Yesterday" are donned with seven lightning bolts, representing the members, surrounding the letter \'b\' with the word \'Yesterday\' written at the bottom.  The group\'s new single will be releasing on February 6. Check out all the teaser images below!

Is PO going to promote this time around? I mean if he wants to then okay, but if he doesn\'t then this is way too soon after his mother\'s death to be forced to promote.

Brought to you by Lays Potato Chips. XD  I\'m so excited, but worred about PO.... it\'s so soon. :/

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