Real Name: Bang Yongguk (방용국)
Birthdate: March 31st, 1990
Height: 180cm
Weight: 62kg
Blood Type: O
Hometown: Incheon
Family: Parents, Older Sister, Older twin Brother 
Education: Gae Woong Elementary School, Gae Woong Middle School, Yoo Han High School, Kyunghee Cyber University
Hobbies/Specialties: Playing by himself, exercise,sports, songwriting, lyric writing 
Right handed or Left: Right handed 
Shoe size: 8
Personality: Tough and brusque 
Ideal Woman: a virtuous woman, Tang Wei (actress) 
Role Model: 1TYM’s Teddy 
Music he enjoys: Hip hop, soul 
Frequent Habit: thinking of rhymes 
Usual fashion style: street hip hop 
Favorite food: Seafood (ex: sushi, sashimi) 
Favorite color: Red, black Favorite number: 0 (zero) 
A Place He Frequents: work room (studio) 
Favorite Movie: Constantine 
Motto: Do what you like and love what you do. (like his tattoo)

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His debut single was 벚꽃 (cherry flower) in Soul Connection. Was a member of an underground group called Soul Connection. Joined Soul Connection in 2008.

Debuted (mainstream) in a 6 member boy group called B.A.P (Best, Absolute, Perfect) in January, 26 2012 with fellow bandmates Himchan, Zelo, Daehyun, Jongup, and Youngjae.

MV Feature/Appearances:

• Song Ji Eun - Going Crazy ft Bang Yongguk
• Secret - Shy Boy
• Secret - Starlight Moonlight
• Untouchable - Make A Fuss
• Zia - One Year

Composed:

Black Out = Maslo & Yongguk

• Bang Yongguk - I Remember ft Yoseob of B2ST
• Black Out - BLACK OUT
• Black Out - Dissatisfaction
• B.A.P - Voice Mail 
• Weekly Sweet - Just Friend

Lyric writing participation:

• Bang & Zelo -  Never Give Up
• Black Out - Always
• Black Out - BLACK OUT
• Black Out - Dissatisfaction
• Black Out - Liquor 
• Black Out - Traces
• Black Out - 거리에서
• B.A.P - Burn It Up
• B.A.P - Coma
• B.A.P - Crash
• B.A.P - Fight For Freedom
• B.A.P - Goodbye
• B.A.P - Happy Birthday
• B.A.P - No Mercy
• B.A.P - One Shot
• B.A.P - Power
• B.A.P - Punch
• B.A.P - Rain Sound
• B.A.P - Secret Love ft Jieun of SECRET
• B.A.P - Unbreakable
• B.A.P - Warrior
• B.A.P - What The Hell
• B.A.P - Voice Mail
• B.A.P - Yessir
• B.A.P - Zero
• CSP - 캐떠리 
• LMNOP - Cinderella 
• SLAKE - Please Marry Me
• Song Jieun - Going crazy
• Soul Connection - Hey Ma
• Soul Connection (Yongguk & DJ Tiz) - I’m Ballin
• Soul Connection - Respect
• Soul Connection - 하얀 밤에
• Untouchable - I’m A Balla
• Weekly Sweet - Just Friend

Produced:

• Black Out - BLACK OUT
• Weekly Sweet - Just Friend