When the staff let the fans in the studio, f(x) were checking the monitor.

While f(x) were taking a break, Luna & Victoria played with each other. Victoria pretended to strangle Luna.

Looks like Krystal kept having a problem with her red check hat so staff fixed it for her

Amber and Sulli turned to play with fans in the studio and smiled at the fans cheerfully

While f(x) were having their 2nd break, Amber asked fans if they were tired and the fans said no.

While waiting for the staff to fix Krystal’s hat, Amber and Sulli played with each other

Fans shouted member names, Sulli turned to, smile and waved to them. Amber shouted (?), Victoria waved, Luna & Krystal smiled

When the fans shouted FIGHTING, Amber turned to them and raised both of her hands

During the 4th recording, while Amber were dancing in front, she suddenly fainted nd her knee hit the floor (t:n: Not really sure if her head hit the floor but another fan acc said it did). Amber could not stand up by herself so the staff entered the stage to support her. Then the recording was stopped

There were cameras following f(x) all the time they were recording M! Countdown

Credits to nakus32, trans by KBNye