Oh My Girl and LABOUM appeared on 'Lee Kuk Ju's Young Street' on April 25 where LABOUM's Yujeong, Soyeon, and Haein performed an immensely soothing cover!

The three girls sang and harmonized wonderfully for Acoustic Collabo's "You and I, Heart Fluttering," their soothing vocals meshing well together to portray the sweet romances of springtime.

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Listen above!