Group ZE:A's member Kwanghee and MBLAQ's member Lee Joon revealed their text message conversation.

Today, Kwanghee posted on his Twitter, "To Lee Joon. Joon, I can't go to your movie premiere because I have schedules today! But I'll always be cheering you on in my heart! Go 'Rough Play'! Don't forget our promise!" along with a picture.

The picture is a screenshot of his conversation with Lee Joon through Kakaotalk, and the cute conversation reveals their close friendship.

Kwanghee first said, "Take care of your body if you want to go promote your movie. We're friends even if your movie does well, right?" Kwanghee also said, "We're friends even if one of us goes to Berlin." At this, Lee Joon replied, "Of course. You're cute."

Internet users who saw this commented, "They're so cute."

Photo Credit: Kwanghee Twitter