- Stage Name: G.NA
- Real Name: Choi Gina (최지나)
- Birthdate: September 13, 1987
- Birthplace: Edmonton, Alberta, Canada
- Blood Type: 0
- Height: 166cm
- Weight: 50kg
- Education: Fraser Heights Secondary School
- Languages: English, Korean
InformationWonder Girls's Yoo Bin, After School's U-ie, Secret's Hyo Sung and former T-ara member Ji Won, however the group never debuted due financial problems.
Time later she signed with CUBE Entertainment, and in January 2010, while she was a trainee, she performed as one of the backup dancers for 4minute's member Hyun A solo debut single "Change". In July 2010 she finally debuted as a solo artist with the digital single "Aeini Saengimyeon Hago Sipeun Il". The song was a duet with singer Rain, being Rain's first duet since 2006, and his first duet with a female solo singer.
A few days after her debut digital single, G.NA released the music video for the lead track of her first mini-album Draw G's First Breath. The MV featured BEAST members Yoon Doo Joon and Yong Jun Hyung (who was also featured on the song).
- Official Fanclub: G.Ni
- She was one of the members of the never debuted and disbanded girl group Five Girls of Good Entertainment.
- [2011.01.18] Black & White
- [2010.07.14] Draw G's First Breath
- [2011.08.26] TOP GIRL
- [2012.05.22] BLOOM
- [2013.03.14] Beautiful Kisses
- [2010.07.05] Aeini Saengimyeon Hago Sipeun Il (With Rain) (애인이 생기면 하고 싶은 일; If You Want A Lover)
- [2010.09.01] Mischievous Kiss OST Part.1 (장난스런키스)
- [2011.03.17] Milk Tea
- [2011.05.11] The Greatest Love OST Part.2 (최고의 사랑)
- [2012.08.30] The Thousandth Man OST Part.3 (천번째 남자)
- [2012.11.09] Shinsadong Tiger Project Album Super Market (신사동호랭이 프로젝트앨범 슈퍼마켓)
- [2013.07.03] Love & Slow
- [2013.12.06] Please Remember, Princess OST Part.3 (러브포텐 - 순정의 시대)
- [2014.05.12] Yeppeun Sogot (예쁜 속옷; Pretty Lingerie)
Collaboration Digital Singles
- [2010.11.10] Together Forever Vol. 1 (G.NA with Hyun A (4minute))
- [2011.01.11] Cheoeum Boepgessseumnida (처음 뵙겠습니다) (G.NA with Wheesung)
- [2011.05.12] Count On Me (Lee Ki Chan with G.NA)
- [2011.07.20] Fly So High (U-CUBE (BEAST, 4minute, G.NA))
- [2012.07.09] 2012 Road for Hope OST Part.1 (희망로드대장정) (Yang Yo Seob, Ji Yoon, G.NA, Lee Chang Sub)
- [2011.01.11] Dokkun Project Pt.2 (G.NA & Sanchez)
- [2013.12.03] Christmas Norae (크리스마스 노래; Christmas Song) (CUBE Artist (BEAST, 4minute, G.NA, A Pink, Huh Gak, BTOB, Roh Ji Hoon, Shin Ji Hoon & Kim Ki Ri))
- [2010.10.15] Let's go!
- [2010.11.05] Road for Hope (#1 Seonmul)
- [2010.12.06] Verbal Jint - go easy 0.5 (#1 Yaksokhae Yaksokhae (feat. G.NA))
- [2011.06.30] Hyun A - A Bitter Day (#1 A Bitter Day (feat. Yong Jun Hyung & G.NA))
- [2011.08.25] BB.BOYS - First Album (#1 Uri Jal Doelgeot Gata (feat. G.NA))
- [2012.03.08] Prepix - Look to Listen (#2 Chingubodaneun (feat. Dok2, G.NA), Another Day (feat. Dok2, G.NA))
- [2012.06.29] JP - JP6 (#2 Mianhaeseo Mianhae (feat. G.NA))
- [2012.09.12] BTOB - Press Play (#1 Press Play (feat. G.NA))
- [2012.10.06] Immortal Song 2: Singing the Legend "Cho Ha Moon" Pyeon (#6 Sanchez - I Bameul Dasi Hanbeon (feat. G.NA))
- [2013.12.09] Hitman Project: A Tribute To The Hitman, David Foster (#1 Mornin' (feat. Phantom))
- [2012.09.21] Oui
- [2010.08.12] Mnet M! Countdown #1 - "Kkeojeo Julge Jal Ssara"
- [2010.09.01] Cyworld Digital Music Awards : Rookie Of The Month (August)
- [2010.12.15] 18th Korean Culture Entertainment Awards: New Generation Popular Music Teen Singer Award
- [2011.02.17] Mnet M! Countdown #1 - "Black & White"
- [2011.02.18] KBS Music Bank #1 - "Black & White"
- [2011.02.24] Mnet M! Countdown #1 - "Black & White"
- [2011.02.25] KBS Music Bank #1 - "Black & White"
- [2011.02.27] SBS Inkigayo #1 - "Black & White"
- [2012.06.08] KBS Music Bank #1 - "2Hot"
- [2013.03.29] KBS Music Bank #1 - "Oops!"