KNK is a South Korean quintet under YNB Entertainment (the company's first boyband). KNK stands for Kpop kNocK and their Hangul name, "keunakeun " means "to be great". Dudes want "to knock on the door of Kpop with their music" -that' the message behind KNK in a nutshell. They released their début single appropriately entitled "Knock" on March 3, 2016 and you could watch the video on Morphosis (here). All five twinks of KNK were trainees of different companies before joining YNB Entertainment. They had a long training period for an average of five years, appearing in music videos of Kpop girlband Bestie, and performing as backup dancers for them as well. Kim You Jin (23), Park Seung Jun (22), Jeong In Seong (21), Kim Ji Hun (21) and Oh Hee Jun (20) are back today with a sophomore single, "Back again", taken from their first mini-album, "Awake".