Knowing Brothers

Episode 51 Duet Project: Universe Cowards (2x51)

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No guests Special EP: "Duet Project: Universe Cowards" Kim Hee-chul and Min Kyung-hoon appeared as transfer students Special Guests: Lee Sang-jun (composer), Momo (Twice), Taeyeon (Girls' Generation) (via phone), AOA (Seolhyun, Hyejeong) (via phone)