f(x) Krystal unveiled a photo of her with leopard hat.

Krystal posted a photo on her me2day with a comment saying "Dress warm on the way work this morning. So cold. BBuing". In the photo, Krystal is wearing a leopard hat, giving cute looks to a camera. 

Netizens commented "Unni, watch out for cold", "Bbuiing, Bbuing!".

Photo: Krystal me2day