F(x)

f (x) (Korean: 에프 엑스, Russian efex or ef x) is a five-member South Korean group formed in 2009 by SM Entertainment in Seoul. The name of the group stands for f = flower (flower) and, like it, they will bloom, x = double female chromosome X. The name of the group is a mathematical formula, that is, it also denotes variability: if "x" changes, then the result will be unusual. All of this is in close connection with the members who differ from each other in a variety of abilities and experiences that will allow them not only to thrive in Korea, but also overseas.