On the October 6 installment of M! Countdown, the Cosmic Girls performed their title song, "Secret" but something seems to be off. 

Netizens discovered that Exy, the rapper and a leader of the group, performed with no mic on while all the other members are seen wearing a mic. What happened? Netizens were equally confused as they commented, "She really went out there without a mic?," "Hul~ That's embarrassing," "I wonder what was going through her head when she finally realized she wasn't wearing a mic," "Going on stage without a mic is like going to battle in a war without a gun," "How can this happen when they've been performing on stage for 8 straight weeks?," "I bet they have awesome MR removed performances," and more.

Check out the video below.

SEE ALSO: IU's "killer" schedule leaves fans in shock and awe