The beautiful duet "When Would It Be" by Yoon Hyun Sang and IU has now been captured in an equally heartwarming MV!

The two look stunning, capturing a vintage and fairy-like image as Yoon Hyun Sang plays the piano in a rundown house with tree roots creeping in and IU sits within a forest in deep contemplation.

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Simple yet effective, this profound duet is worth a listen--or, well, infinite listens.