Debut: 2011

Member: Sandeul
Real name: Lee Jung-hwan
Date of birth: March 20, 1992
Physique: 178 cm, 62 kg

Member: Baro
Real name: Cha Sun-woo
Date of birth: September 5, 1992
Physique: 178 cm, 62 kg

Member: Jung Jin-young
Date of birth: November 18, 1991
Physique: 178 cm, 59 kg


Member: Shin-woo
Real name: Shin Dong-woo
Date of birth: June 16, 1991
Physique: 182 cm, 64 kg

Member: Gong-chan
Real name: Gong Chan-shik
Date of birth: August 14, 1993
Physique: 181 cm, 60 kg


Like many idol groups, B1A4 sought to come up with a name that was unique and catchy. In an industry where all idol group names have some sort of significance or meaning, B1A4 was no exception. It represented the members' blood types as there are four of them with type A blood and one member with type B (Ba-ro). Another meaning was that it stood for "Be The One, All For One".

The group was introduced via webtoons for their debut album which was a fusion of pop and rock. One member in particular was highlighted by the agency, the leader of the group: Jin-young. Jin-young is trained in singing, acting, and composing. In fact, the agency had announced before the group's debut that B1A4's first EP album will include a song composed and written by him.

Just two months after they finally daebuted, offers for commercials were already coming in. They decided to sign with a couple of Korean beverage companies.

Following their title track "O.K.", the guys started promoting "Only Learned Bad Things" which also garnered a positive response.

B1A4 came to win their first TV music show trophy in 2013 with the highly successful song "What's Going On". They maintained a very steady flow of success with their following releases which included songs like Lonely, Solo Day, Sweet Girl, and A Lie.

The group members also branched out to acting, Some of the most successful acting endeavors include Baro in "Reply 1994" and Jinyoung in "Moonlight Drawn By Clouds".


-Let's Fly (EP, April 21, 2011): O.K., Remember, Only Learned Bad Things, Bling Girl, Only One
-"Please Captain" Soundtrack (single, January 4, 2012): Sky
-This Time Is Over (single, March 5, 2012)
-The B1A4 (Ignition) (album, May 24, 2012): Baby I'm Sorry, This Time Is Over, So Fine, Super Sonic, If It's Just the Two Of Us, Laugh, Feeling, One-Sided Love, You Are My Girl, Wonderful Tonight, Sleep Well Good Night, Because of You, Feeling
-"First Man" Soundtrack (single, August 14, 2012): Hey Girl
-In the Wind (album, November 12, 2012):
Intro-In the Wind, Walk, If, I Won't Do Bad Deeds, What Do You Want To Do, Be My Girl, In the Air
-Sunshine (single, April 29, 2013)
-What's Going On (single, May 6, 2013):
Starlight Song, What's Going On, Yesterday, Good Love, How Many Times
-"Reply 1994" Soundtrack (single, November 8, 2013): With You
-Who Am I (album, January 13, 2014): Intro-Prologue, Lonely, Love Then, Amazing, Baby, Oh My God, Overwhelmed, Pretty, Who Am I, Drunk On Music, Road, Seoul
-Solo Day (single, July 14, 2014):
Solo Day, What Does That Make Me, Going Well, A Cup of Water, Drive, You (feat. Sunmi)
-Sweet Girl (single, August 10, 2015):
Sweet Girl, You Are a Girl I Am a Boy, 10 Years Later, Wait, Love is Magic
-Because It's Christmas (single, December 10, 2015)
-Good Timing (album, November 28, 2016):
Time (Intro), A Lie, The Moment I Fall For You Again, Good Timing, Nightmare, In My Dream, Sparkling, To My Star, Melancholy, I'll Find You, Drunk on You, Together