Kim Se Jeong And Ahn Hyo Seop To Fulfill Ratings Promise To Sing An OST Duet As “Business Proposal” Exceeds 10% Viewership Ratings

“Business Proposal” reached double-digit ratings for the first time last night with 10.1% (nationwide) and 10.5% (metropolitan area) viewership ratings.

In a radio interview, Ahn Hyo Seop and Kim Se Jeong made a ratings promise to sing an OST for the series if they achieve over 10% viewership ratings. Hence, we’re getting that duet!

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