There are, at least, thirteen artists known as Amber. 1) Amber Josephine Liu (born September 18, 1992 in Los Angeles, California, United States) also known as Amber (엠버), is an American singer-songwriter currently active in South Korea. She is a member and the rapper of the South Korean girl group f(x). Amber making solo debut and released her first EP titled “Beautiful” on February 13, 2015. 2) A Dutch-German singer-songwriter, label owner & executive producer (aka Marie-Claire Cremers, b.