[THE FACT] The singer Seo Inyoung sang the OST of the daily Korean drama ‘Protect the King’.

The OST production company, KG company has officially disclosed and said, “Seo Inyoung has finished recording professionally and led the atmosphere of recording with her bright and positive personality. And “We have prepared the soundtrack that suits the atmosphere of drama and Seo Inyoung’s vocal so kindly support and set expectations.”