On the December 10 broadcast of MBC's 'Radio Star,' Kangnam and Hyeri revealed that their first impression of each other was not so great, revealing the time they had met for the first time in Myanmar. 

On this day, MC Yoon Jong Shin initiated the conversation and revealed that Hyeri told the producers that she thought Kangnam was strange. It appears the feeling was mutual as to Hyeri's dismay, Kangnam had also told the producers that he thought Hyeri was strange.

Kangnam started to say, "We went to Myanmar for a concert..." Then Hyeri stopped him and darted, "We met before Myanmar! At the bingsu (shaved ice snack) store." The two idols then started to banter back and forth trying to remember the incident and finally, Kangnam said, "Oh! You're that girl!" making Hyeri blush and say, "I didn't have any make up on at the time." 

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Kangnam then continued the story of the time they had met at the bingsu store and said that it was obvious that he was older out of the two. He stated, "Hyeri said, 'Oppa eat some bingsu [formally],' to which I said okay; she also called me 'oppa,' confirming that I was the older one, so I spoke informally."

However, Hyeri thought differently and said, "Yeah, but it wasn't like we arranged to meet up or anything; we just met unexpectedly. And you still spoke to me (informally)..." And being the mature oppa that he was, Kangnam apologized for his actions and for speaking informally, making Hyeri smile. 

Continuing the story of each other's first impressions, the MCs asked again why Kangnam thought Hyeri was strange. To which Kangnam answered, "When we went to Myanmar for a concert, I saw Hyeri walking around the hotel by herself. Just walking back and forth." 

Hyeri defended her actions and said, "I'm not good with directions. And it was because the hotel had upgraded our original rooms to suites...[so I had trouble finding it]."