Se7en apologized to Psy.

Today, Se7en posted on his Twitter, "I didn't know Psy would become a world star. Sorry ^^" along with a picture.

In the picture, Se7en is pouring water on Psy's head while Psy is singing.

After seeing this picture, Psy commented, "Your face looks like you're watering your plants," arousing laughter.

Internet users who saw this commented, "He's so focused on watering," "You really must have not known that he was going to be a world star," and "Psy's face is so real."

Photo Credit: Se7en Twitter