15&'s Park Ji Min and Baek Ye Rin appeared on SBS's radio program 'Kim Chang Ryul's Old School' on April 29 and talked about their latest song, "Can't Hide It," which was produced by J.Y. Park.

Park Ji Min said, "We actually released the album hastily.  We were pressed for time while preparing and we didn't even get to film an MV, so it's a relief that the response was good."

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DJ Kim Chang Ryul asked, "How did you feel when you first received [the song]?"  Park Ji Min replied, "When we first heard the song from Producer J.Y. Park, it was in falsetto, so it was confusing.  People around us said, 'It's nice to hear your voices,'" making everybody laugh.  

He then asked what type of figure J.Y. Park was to them.  Park Ji Min said he was a fatherly figure, but Baek Ye Rim said, "I would feel sorry towards my father, so I will say he's like an uncle."