f(x) bring the 'Red Light' for comeback stage at M!Countdown

Gorgeous ladies of f(x) have just released their music video for comeback song 'Red Light' and hours later they brought it to the stage of M! Countdown for their first stage.

The girls performed two songs and had a contrasting stages. Aside from 'Red Light' where the girls showed their fierce and sexy image, they appeared cute in their song 'Milk'.

Watch their comeback performances below: