Brown Eyed Girls singer Gain revealed that she worked out intensely for her comeback.

Gain recently filmed a photo shoot and held an interview with the fashion magazine ELLE Korea.

"I worked out like crazy even though I hate working out," said Gain.

She continued, "I've never even done any sports all my life but I had intense training for 3 months for fit-looking thighs and hips. I wanted a body where my skin looks tight and fit."

About her bright blue hair, she said, "It was overwhelming at first but I thought I wouldn't be able to do things like these when I'm past 30 so I decided to do it."