Younha 윤하 < 우리가 헤어진 진짜 이유 The Real Reason Why We Broke Up >

Go Younha 고윤하 or better known as Younha is a South Korean singer born on 29th April 1988 (she's now 24 years old) who had her kick start of music career in Japan before she turned back to South Korea. Until today, she was very successful in both country Japan and South Korea. She had her very first debuted album in Japan just when she was 16 "Go! Younha" in 2005. Her first debuted album in Korean released in 2007 "The Prefect Day To Say I Love You" (고백하기 좋은 날).

AOA 에이오에이 < 짧은 치마 Miniskirt >

Ace of Angels 에이오에이 or better known as AOA is a South Korean group and band formed by seven girls of "angels" instead of eight members as the latest to join in Youkyoung represent "half mortal" and "half angel" at their about 20s. Their first debuted single album "Angel's Story" in 2012.

The members are as follow:

Park Cho Ah 박초아 or better known as Choa born on 6th March 1990 (now she's 24 years old) is the main vocalist and guitarist in the group.

Shin Ji Min 신지민 or better known as Jimin born on 8th January 1991 (now she's 23 years old) is the leader, main rapper and guitarist in the group.

Seo Yu Na 서유나 or better known as Yuna born on 30th December 1992 (now she's 22 years old) is the vocalist and keyboard position in the group.

Seo You Kyoung 서유경 or better known as Youkyoung born on 15th March 1993 (now she's 21 years old) is the drummer in the group.

Shin Hye Jeong 신혜정 or better known as Hyejeong born on 10th August 1993 (she's now 21 years old) is the lead vocalist and visual in the group.

Kwon Min Ah 권민아 or better known as Mina born on 21st September 1993 (now she's 21 years old) is the lead rapper, bassist and vocalist in the group.

Kim Seol Hyun 김설현 or better known as Seolhyun born on 3rd January 1995 (now she's 19 years old) is the lead dancer, vocalist and visual in the group.

Kim Chan Mi 김찬미 or better known as Chanmi born on 19th June 1996 is the youngest in the group. She is the main dancer, rapper, vocalist and maknae.

Two X 투엑스 < 링마벨 Ring Ma Bell >

Two X 투엑스 is a South Korean girl group formed by five members at their age of 20s in 2012. Their stage name Two X stands for meaning as such: T (Top), W (Win), O (One) and X (represents "multiply"). Their first single released in 2012 "Double Up" and this song "Ring Ma Bell" in 2013.

Im Chang Sook 임창숙 or better known as Jiyou 지유 born on 15th June 1989 (now she's 25 years old) is the leader and main vocalist in the group.

Choi Eun Mi 최은미 or better known as Eun 은 born on 14th May 1990 (now she's 24 years old) is the vocalist in the group.

Kwak Min Joo 곽민주 or better known as Minjoo born on 12th October 1990 (now she's 24 years old) is the rapper in the group.

Kim Soo Rin 김수린 or better known as Surin born on 27th December 1991 (now she's 23 years old) is also the vocalist in the group.

Joo Eun Young 주은영 or better known as Eunyoung born on 12th June 1992 is the youngest in the group and are in rapper position.

Juniel 주니엘 < 귀여운 남자 Pretty Boy >

Choi Jun Hee 최준희 or better known as Juniel is a singer and song-writer based on Japan before South Korea. She born on 3rd September 1993 (now she's 21 years old) and was first known as "Junie" as it sounded just as similar as her name but added up "L" which means "love" later on. She's good in playing guitar and released her first debuted EP in Japanese "Ready Go" in April 2011. Her first debuted EP in Korean released in 2012 "My First June" and latest studio album "Juni" in 2013.

Rainbow 레인보우 < To Me 내게로.. >

Rainbow is a South Korean girl group formed by seven member in 2009. Their first debuted EP released in November 2009 "Gossip Girl" and their first debuted studio album released in 2013 "Rainbow Syndrome".

The member are as follows:

Ko Woo Ri 고우리 or better known as Woori born on 22nd February 1988 (now she's 26 years old) is the lead dancer, vocalist and main rapper in the group. She's the eldest among the members and represented orange color in Rainbow group. She studied in Korea National Sport University before.

Oh Seung A 오승아 or better known as Seungah born on 13th September 1988 (she's also 26 years old) is the vocalist and represented color of indigo in group. She is still studying in Sangmyung University. 

Kim Jae Kyung 김재경 or better known as Jaekyung is the leader, main dancer and vocalist in the group. She born on 24th December 1988 (now she's also 26 years old) has studied in Dongduk Women University, majoring in fashion design and represented red color in the group. 

No Eul 노을 born on 10th May 1989 (now she's 25 years old) is the sub rapper and vocalist in the group. She studied in Sungdong Women's Business High School and represented blue color in the group. 

Jung Yoon Hye 정윤혜 or better known as Yoonhye, the sub rapper and sub vocalist represented violet in the group. She born on 14th April 1990 (now she's 24 years old) currently still studying in Dongduk Women's University.  

Kim Ji Sook 김지숙 or better known as Jisook who represented green color in the group born on 18th July 1990 (now she's 24 years old) and majoring music in Hanyang Women's University. 

Cho Hun Young the youngest member in the group or better known as Hunyoung is the main vocalist born on 11th August 1991 (she's now 23 years old) studied at Shingwang Female High School. She represented yellow color in the rainbow.

Gary Kang Hee Gun 개리 < Shower Later 조금 이따 샤워해 >

Kang Hee Gun 강희건 or better known as his stage name Gary 개리 is a South Korean singer that are famous with his rap skills. He born on 24th February 1978 (now he's 36 years old). He is also a song-writer, dancer, entertainer, record producer and founder of Lessang Company. He also casting in Running Man, South Korean variety show currently.  

Girls Day 걸스데이 < Something 썸씽 >

Girls Day is a South Korean group formed in 2010 by four girls at their age about 20s. The member consists of Sojin, Mirah Yura and Hyeri. This song "Something" is their famous single albums song that has biggest hit among all song in early 2014. Their debuted studio album released in 2013 "Expectation".

Park So Jin 박소진 or better known as Sojin born on 21st May 1986 (now she's 28 years old) is the leader, main vocalist and lead dancer in the group. 

Kim Ah Young 김아영 or better known as Yura 유라 born on 6th November 1992 (she's now 22 years old) is the sub vocalist and main rapper in the group.

Bang Min Ah 방민아 or better known as Minah born on 13th May 1993 (now she's 21 years old) is the lead vocalist and visual in the group. 

Lee Hye Ri 이혜리 or better known as Hyeri born on 9th June 1994 (now she's 20 years old) is the youngest in the group as sub vocalist and dancer.