'Flat-chested' K-pop star responds to 'cruel' body comments
Amber Liu from Korean all-girl group f(x) has hit back at vicious online comments about the way she looks.
She said she was fed up with people making "cruel" statements about her short hair, tattoos and flat chest - and decided to make a video mocking her critics.
Video by Minji Lee and Jungmin Choi of BBC Korean and Simon Atkinson.