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The BTS video shared on the drama's official Facebook shows Doojoon laughing and squealing in a loud voice, unable to handle the skinship while performing "Trouble Maker" in the karaoke room. Although his fellow B2ST member Hyunseung seemed to have no problem performing the song, Doojoon felt adorably shy when getting close with his co-star Yoon So Hee and had to stop midway from all the sexiness.

However, he managed to pull it together in the end, putting on a sexy performance with his lovely co-star.

Check out Doojoon's short dance cover (27:03 mark!) and the hilarious BTS clip below!