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'My Mister' is a series starring IU as Lee Ji Ahn and actor Lee Sun Gyun as Dong Hun. As the drama has been gaining much attention from viewers through its unique, unconventional plot line, Jung Seung Hwan has been recruited to sing the third OST, adding another layer of emotional aspect to the drama. Listen to Jung Seung Hwan's OST "An Ordinary Day" above.

Have you been keeping up with 'My Mister'?