Nation's younger sister IU is all grown up on the December cover of 'Marie Claire'. She keeps it classy and classic in the black and white cover.

The issue promises 'fabulous winter fashion' and that's exactly what we get in her solo pictorial. She looks just like a doll because of her delicate facial features and the lacy clothing she's wearing for this shoot.

Her interview also seems to have been much deeper than typical magazine interviews. She shared, "I'm in the process of becoming the real IU by adding together the good days and the not so good days I've had."

SEE ALSO: IU to become the first Korean solo artist to hold a show at the Philippine Arena in June

Take a look at the rest of pictorial below!