|Stage Name||Birth Name||Position||Birthday Sort ascending||Age||Height||Star Sign||C Y||BT|
|Heejun 희준||Oh Heejun||Maknae||22||180 cm or 5'11"||Taurus||Rat||B|
|Jihun 지훈||Kim Jihun||Leader, Dancer||23||186 cm or 6'1"||Pisces||Pig||A|
|Inseong 인성||Jeong Inseong||Vocal||24||183 cm or 6'||Cancer||Dog||A|
|Seungjun 승준||Park Seungjun||Rapper, Visual||25||189 cm or 6'2½"||Scorpio||Rooster||B|
|Youjin 유진||Kim Youjin||Vocal||25||186 cm or 6'1"||Aquarius||Rooster||AB|
KNK 크나큰 is a five-member boy band under YNB Entertainment. They're the company's first male idol group. They debuted about three years after their company sunbae girl group Bestie.
KNK is an acronym which stands for the Korean syllables Keu 크 Na 나 Keun 큰. Keunakeun 크나큰 literally means "great" or "to be great." To give the initials meaning for international fans, YNB Entertainment says that KNK stands for Kpop kNocK (케이팝 노크), which means "to knock on the door of K-pop with their music." That meaning in English is a little strange, but it does make the group easier to search for on the internet, so it can be useful for interested listeners to become real fans of KNK.
All five members of KNK were trainees of different companies before joining YNB Entertainment. Youjin trained at TS Entertainment, Seungjun trained at Big Hit Entertainment and later JYP Entertainment, Inseong trained at Big Hit Entertainment with Seungjun before moving to FNC Entertainment, Jihun trained at Nega Network, and Heejun trained at FNC Entertainment. They each had a long training period, with an average of 5 years, during which time they gained a lot of experience in a variety of areas.
As YNB Entertainment trainees, some of the members appeared in music videos of their label sunbaes, Bestie. They also performed as backup dancers for the girl group.
On December 15, 2015 a teaser video of the boys was uploaded on KNK's official YouTube channel.
On December 26, 2015, KNK performed publicly for the first time at the 2015 SBS Awards Festival (SAF) where they performed the two songs on their debut single album. YNB Entertainment label mates Noel, Bestie, and Almeng also performed at the 2015 SAF.
On December 30, 2015, the band's first reality show, "My Keunakeun Television," premiered on Naver TV Cast.
On January 8, 2016, YNB Entertainment opened their official Naver V app channel for the company's artists, including KNK.
On February 1, 2016, KNK began real-time broadcasts almost daily via Naver V app as a countdown to their upcoming debut. The boys showed their daily rehearsals and preparations, as well as their album jacket photo shoot and the filming for their first music video.
On February 22, 2016, the company announced via SNS that the group would debut with their first single album on March 3, 2016.
On February 23-26, the band performed at several universities' freshmen orientations.
They held their debut showcase on February 29, 2016, and officially released their debut single album entitled Knock on March 3, 2016.
On February 26, 2016, the teaser for the music video of KNK's debut single "Knock" was released. The song was composed by production team ButterFly, led by Hwang Seongje who composed BoA's "Atlantis Princess," Lee Sooyoung's "Whistle to Me," and more, while the rap part was written by member Youjin.
The dance for "Knock" was choreographed by Prepix’s Ha Wooshin, and the music video was directed by Lee Kibaek.
On February 29, 2016, the band had their debut showcase at Ilchi Art Hall in Seoul, where they performed their songs "Knock" and "Angel Heart" as well as TVXQ's "Love in the Ice" and Kim Kwangseok's "On the Street."
On March 1, 2016, KNK made their debut on "The Show," the band's first performance on a television music show. Their single album and music video for "Knock" were officially released on the 3rd of March.
The group had their first schedule outside of South Korea and performed their debut single "Knock" at the 20th China Music Awards in Macau on April 15, 2016.
KNK released their first digital single "I Remember" on May 16, 2016. The medium tempo R&B track was composed by Kim Taejoo, who also produced Beast's "Good Luck," "12:30," and more.
On May 23, 2016, YNB Entertainment announced the comeback of the group with their first mini-album entitled Awake through KNK's official SNS. A group image teaser and individual photos for the mini-album were released on May 24 and 25 respectively.
Awake and the music video for the single "Back Again" were released at noon on June 2, 2016. All tracks on the mini-album were produced by Kim Taejoo.
The choreography for the house tempo dance track "Back Again" was arranged by Prepix’s Ha Wooshin while the choreography for the album's first track "Gone" was arranged by KNK's leader, Jihun.
Awake peaked at number 14 on Billboard's World Album chart and the group was recognized by Billboard as one of the most promising Kpop debuts from the first half of 2016.