Yoo Seung Woo and IOI's Yoo Yeon Jung are next in Starship Entertainment's cover project 'Vintage Box'!

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The duo are following K.Will�and Mad Clown, and their sweet voices are perfect for this remake of�indie artist�Coffee Boy's hit song "I'll Be on Your Side". It's obvious from the sound of the duet Yoo Seung Woo and Yoo Yeon Jung brought out all their romance for the song.

Check out the cover of "I'll Be on Your Side" above!