On 'Yoo Hee Yeol's Sketchbook', Yoo Hee Yeol asked, "The subtitle of 'Let's Meet Sometimes For A Long Time' is 'Shin Dong Yup'. Is it the Shin Dong Yup that we all know?"

Gaeko shared, "It's true. After filming a program, we were drinking. Because we are long-time fans of Shin Dong Yup, we told him that we wanted to hang out with him often. But Shin Dong Yup responded, 'You guys are busy and I'm busy too so let's meet sometimes for a long time', and we became stuck on that phrase... We even wanted to name the song, 'Shin Dong Yup', but that sounds weird so we titled it as 'Let's Meet Sometimes For A Long Time' (Shin Dong Yup)'."

Check out Dynamic Duo's performances and interview above!

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Source + image: TV Report via Nate