On December 26, a new episode of Mnet's 'Rain Effect' aired, featuring footage taken of Rain and Lee Hyori backstage at the 2013 MAMA�held on November 22.

As Rain and Lee Hyori were always known to be close friends, they relayed an interesting story about a time they had a conversation together while both were naked in the tanning salon.

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Lee Hyori said, "I have a lot to say to Rain . . . First, I should say everything about the time I saw your naked body in the tanning salon." �Rain replied, "That was really funny. �I went to the tanning salon and I heard Lee Hyori say from the next room, 'Is that Ji Hoon (Rain's real name)?'"

Lee Hyori continued, "We conversed while we were both naked. �We did not see each other. �We talked with a wall between us, but thinking of the fact that he was next to me made me have weird imaginations. �You know."