Rookie vocalist Dahi sang "You Don't Know" for 'The Family Is Coming' OST.

Following Bae Gi Sung's "Don Cry", Girl's Day Sojin's "Ajjil Ajjil", and Fwaney's "Us At That Time", Dahi released part 4 of the OST series. The OST "You Don't Know" is a melancholy song that features the soft, pure vocals of Dahi accompanied by a balanced mix of keyboard and acoustic guitar. The track narrates a person who is experiencing a heartache over unrequited feelings. 

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It has also been reported that although she was given various opportunities, Dahi chose to make singing her winning move.The producer of the track Koonikey complimented the rookie vocalist and told the press, "With her unique vocal color, Dahi expresses the feelings of restraint and alertness [of the song] very well." 

Check out the track above!