Amber

Amber Josephine Liu (born September 18, 1992), also known mononymously as Amber, is an American singer, rapper, and songwriter. She debuted as a member of the South Korean girl group f(x) in September 2009. In 2015, she became the first f(x) member to make a solo debut with the release of her first extended play Beautiful and has since released solo singles in Korean, English, and Mandarin. source: https://en.wikipedia.org/wiki/Amber_Liu_(singer)