SM Entertainment has reported that f(x)’s Sulli will not be able to join the filming together with the group due to severe case of colds. Hence, only 4 f(x) members joined the group performance for “Red Light” on yesterday’s “M! Countdown”. During the said show, “Red Light” still finished first and took home the number 1 trophy.
However, fans grew concerned as they weren’t able to see Sulli again on “Music Bank”. It appears that Sulli’s condition has worsened after this weeks recording of “Show Champion”. Thus, she won’t be able to promote in shows in the meantime.
SM Entertainment said on July 18, "Due to a cold and body aches, Sulli didn't feel well and wasn't able to participate in the 'Music Bank' filming. It's been decided that she will return to promote on shows only after she recovers."