Actor Byun Woo-seok, currently starring as Lee An-daegun in the MBC Friday-Saturday drama '21st Century Grand Prince's Wife', will release the show's final OST titled 'Parallel Line' on the 15th at 6 PM. As the drama reaches its conclusion with its final episodes airing on the 15th and 16th, Byun’s participation as a vocalist aims to deepen the emotional resonance of the romance between his character and IU’s character, Seong Hee-ju. This release marks the culmination of the highly anticipated series, which has garnered significant attention for the chemistry between its lead actors. - Byun Woo-seok performs the final OST 'Parallel Line' for '21st Century Grand Prince's Wife', set for release on the 15th at 6 PM. - The drama '21st Century Grand Prince's Wife', starring Byun Woo-seok and IU, is approaching its series finale with the final episodes scheduled for the 15th and 16th. Q: Why is this trending? A: The drama '21st Century Grand Prince's Wife' is nearing its highly anticipated conclusion, and fans are showing immense interest in the final OST track 'Parallel Line' personally sung by lead actor Byun Woo-seok. | Actor Byun Woo-seok, currently starring as Lee An-daegun in the MBC Friday-Saturday drama '21st Century Grand Prince's Wife', will release the show's final OST titled 'Parallel Line' on the 15th at 6 PM. As the drama reaches its conclusion with its final episodes airing on the 15th and 16th, Byun’s participation as a vocalist aims to deepen the emotional resonance of the romance between his character and IU’s character, Seong Hee-ju. This release marks the culmination of the highly anticipated series, which has garnered significant attention for the chemistry between its lead actors. - Byun Woo-seok performs the final OST 'Parallel Line' for '21st Century Grand Prince's Wife', set for release on the 15th at 6 PM. - The drama '21st Century Grand Prince's Wife', starring Byun Woo-seok and IU, is approaching its series finale with the final episodes scheduled for the 15th and 16th. Q: Why is this trending? A: The drama '21st Century Grand Prince's Wife' is nearing its highly anticipated conclusion, and fans are showing immense interest in the final OST track 'Parallel Line' personally sung by lead actor Byun Woo-seok.