Seungho
Full Name : Yang Seungho (양승호)
Date of Birth : October 16, 1987 (age 22)
Position : Leader, Lead Vocalist
Height : 176cm
Weight : 60kg
Talent : Apparatus gymnastics, dancing, playing piano, Magic card
Hobbies : listening Music, Early adopter
Attractions : Acrylic
Idol girl : Jeon Ji Yoon (4minute)

G.O
Full Name : Jung Byunghee (정병희)
Date of Birth : November 6, 1987 (age 22)
Position : Main Vocalist
Height : 177cm
Weight : 64kg
Talent : singing, dancing
Hobbies : cooking
Attractions : Vocal weerwolf the soft and stylish
Idol girl : Uee (After School)
G.O. is a former member of Korean group, TYKEYS, a 3-member band that debuted in 2007.

Joon
Full Name: Lee Changsun (이창선)
Date of Birth: February 7, 1988 (age 22)
Position: Vocalist, Main Dancer
Height : 180cm
Weight : 63kg
Talent : Modern Dance, Ballet, act
Hobby : Exercise
Idola girls : Kim Yu-na (Figure skater Korea)
Joon acted in the movie Ninja Assassin as the younger version of Rain's character Raizo.

Thunder
Full Name : Park Sanghyun (박상현)
Date of Birth : October 7, 1990 (age 19)
Position : Rapper, Lead Dancer
Height : 181cm
Weight : 56kg
Talent : Dancing, Rap, Singing
Hobbies : Listening Music, composer
Attractions : Gentle smile
Idola gir l : So Hee (Wonder Girl)

Cheon Doong (Korean term for Thunder) is the younger brother of 2NE1 vocalist Sandara Park. Having trained under Loen Entertainment, Cheon Doong transferred to J.Tune to then replace member Sang Bae (상배) after he left before the group's debut. His sister, Sandara Park, is a former Korean expatriatewho once starred in movies and television shows in the Philippines. Like his sister, he lived in the Philippines and is fluent in Tagalog and is also conversational in English.

Full Name : Bang Chulyong (방철용)
Date of Birth : March 10, 1991 (age 18)
Position : Main Rapper
Height : 178cm
Weight : 60kg
Talent : singing, dancing
Hobbies : Gag
Attractions : Beautiful Boy and Hoarse voice
Idola girls : Kim Tae Yeon (SOSI)
Mir is the younger brother of actress Go Eun Ah. He recently became part of Makbanshi (Korean: 아이돌 막내반란시대 lit. Idol Magnae Rebellion) along with the other youngest members of fellow idol groups2AM, FT Island, U-Kiss, T-Max, and Mighty Mouth. He featured in Ahn Jin Kyung's song, "Bad Person".

Seungho
Full Name : Yang Seungho (양승호)
Date of Birth : October 16, 1987 (age 22)
Position : Leader, Lead Vocalist
Height : 176cm
Weight : 60kg
Talent : Apparatus gymnastics, dancing, playing piano, Magic card
Hobbies : listening Music, Early adopter
Attractions : Acrylic
Idol girl : Jeon Ji Yoon (4minute)

G.O
Full Name : Jung Byunghee (정병희)
Date of Birth : November 6, 1987 (age 22)
Position : Main Vocalist
Height : 177cm
Weight : 64kg
Talent : singing, dancing
Hobbies : cooking
Attractions : Vocal weerwolf the soft and stylish
Idol girl : Uee (After School)
G.O. is a former member of Korean group, TYKEYS, a 3-member band that debuted in 2007.

Joon
Full Name: Lee Changsun (이창선)
Date of Birth: February 7, 1988 (age 22)
Position: Vocalist, Main Dancer
Height : 180cm
Weight : 63kg
Talent : Modern Dance, Ballet, act
Hobby : Exercise
Idola girls : Kim Yu-na (Figure skater Korea)
Joon acted in the movie Ninja Assassin as the younger version of Rain's character Raizo.

Thunder
Full Name : Park Sanghyun (박상현)
Date of Birth : October 7, 1990 (age 19)
Position : Rapper, Lead Dancer
Height : 181cm
Weight : 56kg
Talent : Dancing, Rap, Singing
Hobbies : Listening Music, composer
Attractions : Gentle smile
Idola gir l : So Hee (Wonder Girl)

Cheon Doong (Korean term for Thunder) is the younger brother of 2NE1 vocalist Sandara Park. Having trained under Loen Entertainment, Cheon Doong transferred to J.Tune to then replace member Sang Bae (상배) after he left before the group's debut. His sister, Sandara Park, is a former Korean expatriatewho once starred in movies and television shows in the Philippines. Like his sister, he lived in the Philippines and is fluent in Tagalog and is also conversational in English.

Full Name : Bang Chulyong (방철용)
Date of Birth : March 10, 1991 (age 18)
Position : Main Rapper
Height : 178cm
Weight : 60kg
Talent : singing, dancing
Hobbies : Gag
Attractions : Beautiful Boy and Hoarse voice
Idola girls : Kim Tae Yeon (SOSI)
Mir is the younger brother of actress Go Eun Ah. He recently became part of Makbanshi (Korean: 아이돌 막내반란시대 lit. Idol Magnae Rebellion) along with the other youngest members of fellow idol groups2AM, FT Island, U-Kiss, T-Max, and Mighty Mouth. He featured in Ahn Jin Kyung's song, "Bad Person".