Singer Lee Hyori turned into a 'bad girl' with her dog Soon Shim.

Today, Lee Hyori posted on her Twitter, "Bad girl and bad Soon Shim" along with a picture.

In the picture, Lee Hyori and Soon Shim are posing for the camera together. Both of them are wearing beanies that reads 'bad girl.'

Internet users who saw this commented, "I'm excited for her coemback stage," "Bad girl doesn't match Soon Shim because he has such a innocent face," and "She's so pretty."

Lee Hyori released the title song of her 5th album "Bad Girl" through Mnet '2HYORI SHOW' aired yesterday.

Photo Credit: Lee Hyori Twitter