B1A4’s CNU: Profile, Facts, Songwriter, and More


Let’s get personal with B1A4’s CNU!

For the K-Pop fans who have been here since the 2nd Generation K-Pop, it’s impossible to miss the boy group B1A4 since they were one of the biggest boy groups in that era. It’s sad news that the group has been in an inactive state ever since the members Jinyoung and Baro’s departure. But, thankfully, the three members are still here! One of them is CNU (Born with the name Shin Dong-woo on January 16th, 1991). He made his Korean debut with B1A4 in the MBC Show! Music Core on April 23rd, 2011, and he made his Japanese debut on June 27th, 2012. He was part of six Korean mini-albums, and two Japanese-language studio albums. In May 2012, he played a part in the KBS sitcom Sent From Heaven (2012) and plenty of musical stages such as Chess (2012), The Three Musketeers (2016), and Hamlet (2017).

Are you curious to know more about CNU’s story and get personal with him? If so, scroll down the article below to find out all the details about his life and career!


CNU’s Full Profile


Stage Name: CNU (신우)
Birth Name: Shin Dong-woo (신동우)
Position: Main Dancer, Lead Vocalist, Lead Rapper
Date of Birth: June 16th, 1991
Zodiac Sign: Gemini
Height: 182 cm (6’0″)
Weight: 64 kg (141 lbs)
Blood Type: A
Birthplace: Chungbuk Cheongju, South Korea
Instagram: @realcnu
Twitter: @b1a4_cnu


CNU’s Facts

  • He is the mom of the group if B1A4 was a family
  • He has one sibling (an older sister)
  • He was the last member to be recruited as part of B1A4
  • Out of all the other members, he is the tallest among the group with a height of 182 cm
  • He was the last member to join B1A4
  • His stage name, CNU, stands for “a dependable and sweet-natured friend”
  • His stage name is pronounced as Shin-oo
  • His nickname is ChikeNU (in reference to chickens)
  • He was called the inspector/detective by Gongchan
  • He is the oldest member of B1A4
  • He is enthusiastic about health, that’s why he said he likes sports
  • He is said to be similar to FT Island’s Jaejin & Hongki, MBLAQ’s Thunder, B2ST’s Gikwang
  • CNU is taken from his full name, Shin Dong Woo (SHIn = C *in English C is pronounced Shi*, doNg = N, and wOO = U)
  • He is the most polite member
  • His hobby is swimming and he swims often
  • He’s enthusiastic, charismatic, and quiet, and also has a killer smile
  • He likes to write lyrics
  • He looks indifferent on the outside but when you get to know him, he is chatty and affective
  • He comes from the Choong-book area
  • He shed a few tears while bathing in the bathroom after they finished their first debut stage
  • He has a puppy named Malgeumi
  • He has a sensitive personality
  • He likes to wear t-shirts and jeans in his style
  • He thinks he has become more mature since his debut
  • His smile makes his fans melt
  • He likes to be alone
  • He can make other members feel comfortable
  • He is an honest person
  • The members say that he is hard to read
  • When he’s angry, he never shows anger, instead, he still smiles
  • While in training, he continued to work hard practicing his choreography and vocals
  • He said that he has broad shoulders, he also has nice legs
  • He is meticulous, that’s why the members said that CNU is like their mother
  • Even though he doesn’t like comics, he said he likes One Piece, and he likes Sanji in that comic because Sanji is so cool
  • His favorite song is “Up To You” by Chris Brown
  • His favorite Japanese singers are Tamaki Koji (玉置浩二) and Anzen Chitai (安全地 帯)
  • He can do Taekwondo
  • He is an active musical actor and has acted in three musicals: Chess (2012) as Anatoly Karpov, The Three Musketeers (2016) as D’Artagnan, Hamlet (2017) as Hamlet
  • He described his ideal type as a “motherly, mature woman”
  • Regarding his ideal type, he said, “I revealed Krystal was my ideal type when I appeared on Weekly Idol. To tell the truth, Krystal is not motherly. Personally, I like Go Hyun Jung. I like the feeling of maturity.”


Debut with B1A4

CNU made his career debut with B1A4 through their debut EP, Let’s Fly, and the title track “O.K” on April 21st, 2011. Later they promoted and performed their debut track on the MBC Show! Music Core on April 23rd, 2011.

Prior to their debut, the members of B1A4 were first revealed in the form of a webtoon before releasing their official photos. Even before debut, the group had already received attention through the unique promotional technique of their label, WM Entertainment. The group was promoted as “idols who come out of a webtoon comic” and they received hot response from both local and international netizens.


Initially, they were believed to be a co-ed group due to the fact that in the webtoon, a character named Anna was introduced. It turns out that the group consisted of five members who were all male when member Jinyoung’s photo was the first released on April 10th, 2011, along with his story on the webtoon. Photos of Baro, Gongchan, Sandeul, and CNU were released on April 11–14, 2011, each along with the story.

Their debut mini-album, Let’s Fly, was released digitally and physically on April 21st, 2011, along with the full MV, after releasing the MV teaser, two days earlier, on April 18th, 2011.

The MV has been watched for more than 8 million times since the day of its release. It received a lot of attention back then from the Korean public.

The group made their debut appearance on the April 23rd, 2011 episode of MBC Show! Music Core and was considered a successful performance for the group grabbing the attention of netizens. They had their next debut stage on Mnet’s M! CountdownKBS’ Music Bank, and SBS’ Inkigayo on April 28th, April 29th, and May 1st, 2011, respectively. On May 1st, 2011, they had their first radio broadcast on Park Gyungrim Starry Night Radio on MBC’s FM4U.

Check out their debut stage below!



CNU is known to be a member who is active on social media. On top of Twitter and Facebook, he also consistently posts updates on his personal Instagram account.

His posts range from selfies featuring his pet to his members, and also his promotional activities.

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With 곤❤️

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CNU’s update with his dog, Gon.

And the members Gongchan and Sandeul celebrating the New Year.

Or that time during his military enlistment.

On top of that, he also shares his promotional activities such as that time when he became the special MC for MBC’s Show! Music Core in 2019. He wrote a sweet message, “We did special MC in the music center. It’s been a long time since it’s been a music center, so it was a new and good time. I sincerely thank the fans who came to see me and all the artists worked hard~ Thank you, Eunwoo and Mina!”

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To. 바나 안녕하세요 신우입니다. 2019년도 벌써 한달이 지나가고 있네요 다들 신년 계획이나 목표했던 일들 잘 실행하고 계신가요? 이럴때 보면 시간이 참 빠르다고 느껴집니다. 데뷔한지가 엊그제 같은데 벌써 8년이라는 시간이 흘렀고 20대 초반의 나이에서 어느덧 서른을 바라보는 나이가 되었습니다. 아마 시간이 빠르게 느껴진다는건 행복한 일들이 많아서겠죠? 이 모든 행복에 함께 해준 우리 바나들 진심으로 감사해요. 이렇게 편지를 쓰는 이유를 모두가 알거라고 생각합니다. 군 입대를 하게 되었습니다. 갑작스러운 입대 소식에 놀랐을 바나들에게는 미안하기도 해요… 하지만 더욱 더 남자답고 늠름한 모습으로 돌아올 신우를 기대해주세요! 몸 건강히 군 복무를 잘 마치고 돌아와서 동생들과 함께 바나를 위한 행복한 일들 많이 만들어줄게요! 그 때까지 우리 바나들 어디에 있든지 모두 건강하게 잘 지내길 바랍니다. 밥 잘 챙겨 먹고 감기 안걸리게 옷 따뜻하게 입고 너무 밤 늦게 다니지 말고 친구들과 사이좋게 지내고 항상 긍정적인 생각으로 잘 지내줬으면 좋겠어요. 꼭 그렇게 해야 합니다. 더 멋진 맏형으로 돌아올게요. 안녕! #더뜨겁게사랑할여름에만나자 #B1A4 #신우 #산들 #공찬 #BANA 더 뜨겁게 사랑할 여름에 돌아올게

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He is also known to be the sweet thoughtful member as he wrote a sweet personal letter to fans while greeting them on the new year following the news of his enlistment,

“To. Bana. Hi Shin. A month is already passing in 2019. Are you all doing well with your New Year’s plans and goals? At this time, it feels like time is very fast. It seems like yesterday since I debuted, but eight years have already passed, and from my early twenties to thirty. Maybe time feels fast because there are so many happy things, right? Thank you very much for all of this happiness. I think everyone will know the reason for writing this letter. I joined the military. I’m also sorry for Barnadeul, who would have been surprised by the sudden news of the enlistment… But please look forward to Shinwoo who will return with a more manly and dignified appearance! After completing my military service in good health, I will come back and make a lot of happy things for Bana with my younger siblings! Until then, I hope everyone stays healthy wherever we are. I hope you eat well, wear warm clothes to avoid a cold, and don’t go too late at night, get along with your friends, and always stay well with positive thoughts. You must do that. I will return to the cooler eldest Hello! # Hotter love meet me in the summer # B1A4 # renal # mountains # Gongchan #BANA I’ll be back in the hotter summer love.”

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바나들아 이렇게 편지를 쓰는건 오랜만인것 같습니다. 모두 잘 지내고 있나요? 잘 지내냐는 인사의 무게가 더욱 무겁게 느껴지는 요즘 입니다. 우리 바나분들께서는 꼭 잘 지내셨으면 좋겠습니다. 여러분 저희가 드디어 9주년을 맞이하였습니다. 처음 바나들을 만난게 엊그제 같은데 벌써 9주년이라니 실감이 나지 않습니다. 9년이란 시간동안 든든한 버팀목이 되어준 여러분께 진심으로 감사하다는 말씀 드리고 싶습니다. 여러분들과 함께 했던 추억들을 하나하나 되뇌이면서 이 뜻깊은 날을 맞이하려 합니다. 첫 데뷔날 저희를 보러와주신 여러분의 얼굴, 첫 콘서트 하던 날 공연장을 가득 메워준 여러분의 목소리, 첫 1위하던날 함께 기뻐 해주시던 여러분의 마음, 입대 전 팬미팅 하는 날 저를 보내며 슬퍼하던 여러분의 눈물… 떠올려보니 수 없이 많은 날을 바나분들께서 함께 해주었네요. 이 모든 날을 절대 잊지 못하는건 바나분들께서 늘 곁에 계셨기 때문이라고 생각합니다. 다시한번 진심으로 감사합니다. 저는 요즘 여러분과 만날 날을 기다리며 하루하루 설레는 마음입니다. 바나분들도 앞으로 저희들과 만들어나갈 추억을 위해 조금만 기다려주시기 바랍니다. 그 날 까지 건강하게 잘 지내셔야합니다. 얼마 남지 않은 그 날을 기다리며 이만 마치겠습니다. 감사합니다. 행복하자! -신우 올림- #BANA #B1A4 #b1a49thanniversary

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And he did it in 2020 again with the personal greeting to B1A4’s 9th anniversary that falls on April 21st, 2020. He wrote,

“Banadeul, it’s been a while since I have written a letter like this. Are you all doing well? These days, the weight of greetings saying how you’re doing well feels heavier. I hope our Banas are doing well. Everyone, we have finally reached the 9th anniversary. It seems like yesterday that I first met Banadle, but I can’t feel it because it’s already the 9th anniversary. I would like to express my sincere gratitude to all of you who have been strong support for 9 years. I am going to meet this meaningful day by repeating the memories I had with you one by one. The faces of all of you who came to see us on the first day of our debut, the voices of all of you who filled the venue on the day of the first concert, the hearts of all of you who were pleased with the day of the first place, and those who were sad to send me the day of the fan meeting before enlistment. Tears of… I think that the Bana people have been with me for countless days. I think that the reason I will never forget all these days is that the Bana people were always there. Thank you again sincerely. I am excited day by day waiting for the day to meet you these days. Please wait a little bit for the memories we will make with us in the future. Until that day, you have to stay healthy. I will finish this while waiting for that very few days left. Thank you. Let’s be happy! – Shin-lift – #BANA # B1A4 # b1a49thanniversary

He is also known to be a supportive friend of the other members as he updated his Instagram page with the support for Gongchan’s drama and Sandeul’s performance in early 2020.

Just like his stage name means, he is really “a dependable and sweet-natured friend.”


Military Service


As we all know, CNU enlisted in the military as an active-duty soldier for 21 months on January 22nd, 2019, which means that he still has a few months to finish until 2021. But, due to the current situation, CNU was discharged early from the army.

On July 28th, 2020, WM Entertainment as the agency of CNU and B1A4, announced that the oldest member of the group has left the military base.

The official date for CNU to be released from military service was on August 28th, 2020. This K-Pop idol was released early due to military protocol during the Covid-19 pandemic.

This is implemented to prevent the spread of the coronavirus in the military base area. Soldiers and visitors are prohibited from entering or leaving the base if they do not have a special interest.

Hence, soldiers on active duty are also prohibited from going out on a vacation, and when the date of their official discharge arrives, soldiers will receive a long vacation after they are discharged.

CNU can return to his activities as an idol after the end of his status as an active-duty soldier on August 28th, 2020.

We can’t wait for his comeback!


So, those are all the things that you need to know about B1A4’s CNU! What do you guys think about him? Kindly share your thoughts with us in the comment section below!