Stephanie Hwang ( Korean name : Hwang Mi-young ; Hangul : í ë ì ; Hanja : é '' ç 3\/4 è ; born August 1 , 1989 ) , best known simply as Tiffany , is an American singer and dancer . Stephanie Hwang ( Korean name : Hwang Mi-young ; ; Hanja : é '' ç 3\/4 è ; born August 1 , 1989 ) , best known as Tiffany , is a Korean American singer and dancer of the South Korean girl group Girls ' Generation .