B1A4: Profile, Member Changes, Future Activity, and More


Get To Know B1A4!

B1A4 is a South Korean boy band consisting of five members that debuted in 2011. They’re under WM Entertainment. They were introduced through a webtoon series and debuted on April 23rd, 2011, with the single “O.K” from the EP Let’s Fly at MBC’s Music Core. B1A4 have been constantly active in Korea and Japan. They also released albums in Japanese versions. Without further ado, let’s dig into the sea of detailed information about B1A4 in this article. Check it out!

B1A4’s Full Profile

  • B1A4: Be the One, All For One (Apparently the group’s name has dual meanings, the other meaning is related to the members’ blood types)
  • Greetings: Let’s Fly, B1A4! 안녕하세요! B1A4입니다! (Let’s Fly, B1A4! Hello we are B1A4!)
  • Debut Date: April 23rd, 2011, with the single “O.K” from the EP Let’s Fly 
  • Years active: 2011–Present
  • Agency: WM Entertainment
  • Labels: Kakao M (Korea), Universal Music Japan (Japan)
  • Members: CNU (Lead Vocalist, Rapper), Saundeul (Main Vocalist), Gongchan (Vocalist, Maknae)
  • Former Members: Jinyoung (Leader, Lead Vocalist), Baro (Main Rapper)
  • B1A4 Fandom Name: BaNa (“Ba” being B1A4 and “Na” being the fans. It’s also a short form of 반하다 or “Banhada” which means “fallen in love with” because B1A4 fell in love with their fans)
  • B1A4 Official Fan Color: Pastel Apple Lime
  • B1A4 Lightstick name: 뿅이봉 (Bbyongie)
  • B1A4’s Instagram: @b1a4ganatanatda
  • B1A4’s Twitter: @_b1a4official
  • B1A4’s Facebook: wm.b1a4
  • B1A4’s YouTube: b1a4official
  • B1A4’s Vlive: B1A4

B1A4’s Facts

  • CNU is the tallest among the members of the band. His height is 182 cm (6’0″). His name, CNU, means a dependable and sweet-natured friend.
  • CNU, Sandeul, and Jinyoung have an older sister.
  • Sandeul is the member who has a lot of friends idols from other groups. He is close to VIXX’s Ken, Day6‘s Sungjin (they went to school together back in Busan), and BTS’ Jin (they went to an amusement park together).
  • According to B1A4’s One Fine Day, Gongchan and Jinyoung used to have Acrophobia but they’ve already overcome it.
  • Gongchan was featured on Mamamoo’s “Piano Man” MV. (He’s the “piano man”)
  • Jinyoung has acted in various dramas, such as The Thousandth Man (2012), She is Wow (2013), Persevere, Goo Hae-Ra (2015), Warm and Cozy (2015), Love in the Moonlight (2016), If We Were a Season (2017), My First First Love (2019). He received the Best New Actor award for his role in the drama Love in the Moonlight at the 2016 KBS Drama Awards.
  • Baro has also acted in various dramas, such as Reply 1994 (2013), God’s Gift – 14 Days (2014), Persevere, Goo Hae-Ra (2015 – cameo), Angry Mom (2015), The Master of Revenge (2016), Manhole (2017).

B1A4 Debut and Golden Era


B1A4 debuted on April 23rd, 2011, with the single “O.K” from the EP Let’s Fly at MBC’s Music Core. The members of B1A4 were introduced through a Webtoon (a type of digital comic that originated in South Korea). During the debut days, they promoted through various music shows such as M! Countdown, Music Bank, and Music Core. They won the Hot Debut Star award at SBS MTV Best of the Best. They also won some awards during their rookie days, such as the Best Newcomer Award, Super Rookies for 2012, Best Male Newcomer, New Asian Artist, New Artist of The Year, and many more.

Check out the B1A4 performances, here:

B1A4 Music Video (Debut Single)



B1A4 Debut Stage