Group f(x)'s Krystal is catching much attention with new black hair.

In KBS2 "Music Bank" aired yesterday, girl group f(x) came out to perform their song "First Wisdom Tooth." On this day, Krystal revealed her new black hair, catching much attention.

Krystal had been portraying a chic charm with red hair until now, but she dyed it back to black.

Internet users who saw this commented, "Red hair looked good on her too but black looks better," "Black hair makes her look innocent," "Red hair was cuter on her," and "She looks good in any hairstyle."

Photo Credit: KBS2