Currently airing tvN youth romance drama 'The Liar and His Lover' (also 'Lovely Love Lie') has released OST Part 4, sung by lead female actress Red Velvet's Joy.

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This is Joy's 3rd OST for the drama series, and she is the only other artist besides the on-screen band in the drama, Crude Play, to have participated in the OSTs revealed so far. With her refreshing voice, Joy (in the role of Yoon So Rim) brightens hearts and manages to prove herself as a worthwhile singer on stage with "Your Days". 

Watch scenes recapping Joy and Lee Hyun Woo's encounters in the MV above.