After Girl's Day's maknae Hyeri surprised and concerned everyone by fainting on the 'M! Countdown' stage today, she made sure to let everyone know that she was okay through a thoughtful message on Twitter.

She wrote, "Ah, I'm sorry for making everyone worry about nothing.  I am okay!  I am really grateful for everyone's concern!  Let's meet energetically tomorrow~Everyone, be careful of catching a cold.  Cough cough."

SEE ALSO: Girl's Day's Hyeri faints on 'M! Countdown' stage

A rep from the music show said, "Hyeri suddenly fainted while performing.  I heard she is recuperating.  She had finished recording the rehearsal without any problems."

Feel better soon!