f(x) 에프엑스 ~

F(x) is a mathematic symbol and when you imput different "x" you can let different outcomes. So, as f(x), we want to be that kind of group that can change and adapt in may situation" - Krystal

f(x) krystal promotional photos from Etude House

"My Lovely Girl" Teaser

Krystal official photo from W Magazine

Krystal promotional photos from Etude House

f(x) Victoria Red Light Merchandise Scans

f(x) Sulli Red Light Merchandise Scans

f(x) Luna Red Light Merchandise Scans

f(x) Amber Red Light Merchandise Scans

f(x) Krystal Red Light Merchandise Scans

f(x) Red Light Merchandise Scans