Upon seeing Rain, Lee Hyori said, "It's really been a while.  How have you been?" and gave Rain a nice hug while Lee Ha Neul exclaimed, "Affair, affair, affair," to everyone's laughter.

Lee Hyori responded, "Hey, this noona is no longer a noona you can mess around with however you want."

SEE ALSO: Lee Hyori glows in new photoshoot, showing off sleek physique and soulful aura

Rain said, "While walking all the way to the waiting room, I could not tell who was who."  Lee Hyori had another sassy response for this statement!  She teased, "You couldn't even though you know every woman?  You did not learn every single one of their names while watching TV in the military?"

Rain responded automatically with, "I did learn them."  To further amuse everyone, Rain said, "Our wake-up call was IU's song so I even learned the choreography," and started doing the main point in IU's dance.

Watching him, Lee Ha Neul said, "Aren't the movements too erotic?" and Lee Hyori agreed, "Now that I look at it, it does seem kind of erotic.  I couldn't tell when IU did it, but it looks dirty when you do it."

Although they haven't seen each other in a long time, it appears their cute friendship and teasing hasn't gone away.