f(x) is a South Korean girl group formed by S.M. Entertainment in 2009. The group is currently composed of four members: Victoria, Luna, Amber, and Krystal. It was originally a five-piece group with Sulli, who later departed from the group in August 2015.

Stage Name: Victoria/빅토리아
Real Name: Song Qian/ 宋茜 /Victoria Song
Nicknames: Vic Umma, Qianqian, Pororia
Birthday: February 2, 1987
Birthplace: Qingdao, Shandong, China
Blood Type: A
Height: 168cm
Weight: 45kg
Position in group: Leader, Main Dancer, Vocalist
Languages: Chinese, Korean
Hobbies: dancing
Education: Beijing Dance Academy
Fans: Victorians

Stage Name: Amber/엠버
Real Name: Liu Yi Yun/劉逸雲/ Amber Josephine Liu
Nicknames: Llama, Dino, Eunyoung
Birthday: September 18, 1992
Birthplace: Los Angeles, California, USA
Blood Type: B
Height: 167cm
Weight: 45 kg
Position in group: Main Rapper, Vocalist
Languages: English, Korean, Chinese
Instruments: guitar
Hobbies: dancing, rapping
Siblings: older sister Jackie
Education: El Camino Real High School
Fans: Embers

Stage Name: Luna/루나
Real Name: Park Sunyoung/박선영/ 朴善怜
Nicknames: Puppy
Birthday: August 12, 1993
Birthplace: Seoul, South Korea
Blood Type: A
Height: 164cm
Weight: 44kg
Position in group: Main Vocalist, Lead Dancer
Languages: Korean, Chinese
Hobbies: learning Chinese dance and language, singing
Siblings: older twin sister Jin Young, one older brother
Education: Chung Ang University’s Institute of the Arts, Major in Theater
Fans: Lunatics

Stage Name: Krystal/크리스탈
Real Name: Jung Soojung/정수정/鄭秀晶/ Chrystal Soo Jung
Nicknames: Krys, Maknae
Birthday: October 24, 1994
Birthplace : San Francisco, California, USA
Blood Type : O
Height: 168cm
Weight: 48kg
Position in group: Lead Vocalist, Visual/Face of the Group, Maknae
Languages: English, Korean, Japanese, Chinese
Hobbies: acting, dancing
Siblings: older sister Jessica (ex Girls' Generation)
Education: Korea Kent Foreign School; Hanlim Multi Arts School; Sungkyunkwan University, Major in Theater
Fans: Krystalized

Former Member

Stage Name: Sulli/설리/雪莉
Real Name: Choi Jinri /최진리/ 崔真理
Nicknames : Ssul, Giant Baby, One Million Dollar Smile, Sulliver, Sullovely
Birthday: March 29, 1994
Birthplace : Yangsan, South Gyeongsang, South Korea
Blood Type : O
Height : 169 cm
Weight: 41 kg
Position in group: Lead Rapper, Vocalist, Visual
Languages: Korean
Hobbies: acting, dancing
Siblings: two older brothers
Education : Jungbu Elementary School; Chungdam Middle School; Seoul Performing Arts High School
Fans: Sullians