Jin, the oldest member of K-pop mega-band BTS, has entered military service, the first of the group to do so.
The 30-year-old posted a photo of himself with his new military haircut before enlisting on Tuesday saying his haircut looks cuter than he expected.
Jin has begun five weeks' training at a bootcamp near the North Korean border.
This news sent his millions of adoring fans into a frenzy.
