[Courtesy of Block B]
Boy group Block B has unveiled a set of teaser images showing a glimpse of its concept from the next single.
The seven-member group uploaded the teaser images onto its Facebook Tuesday including a group photo and individual cuts of members. According to the posts updated onto Facebook, the group's upcoming single "Yesterday" will be released on February 6.
reporter
Park Sae-jin
swatchsjp@ajunews.com
![[AJU VIDEO] Block B sweeps major music charts with Yesterday](https://image.ajunews.com/content/image/2017/02/06/20170206141410678517.gif)
![[AJU VIDEO] Block B drops sitcom-themed music video teaser clip](https://image.ajunews.com/content/image/2017/02/02/20170202101322991480.gif)
