Girl's Day's Hyeri explained the situation leading up to her famous aegyo moment on 'Real Men'!

If you're out of the loop, Hyeri's brief moment of aegyo as she bid goodbye to her instructor made the rounds on the Internet several weeks ago, quickly rising as one of the top examples of aegyo in K-Pop history.

Today on the latest episode of 'Real Men', the female cast got together several days after leaving the military to catch up with each other.

Dolled up and an idol again, Hyeri explained that her performance was a spur-of-the-moment action. "I was actually somewhat disappointed," she said. "It was the last day, I hoped [the instructor] would be a bit nicer."

Check out the clip below.