A video of former President Yoon Suk Yeol and his wife, Kim Keon Hee, singing a duet has been released, featuring the couple at the center of Korea’s first-ever case of a former president and first lady being detained simultaneously. The video was posted on social media by a close aide to Kim, prompting speculation that it may be intended to build public support for her release ahead of the expiration of her detention period at the end of this month. The video was posted Saturday by Jung Ji-won, a former administrative official at the presidential office who served as Kim’s aide during the Yoon administration. It shows the couple, dressed casually, singing “All I Ask of You” from the musical “The Phantom of the Opera” at what appears to be their residence. In the musical, the characters Christine and Raoul sing the song as they pledge their eternal love to each other. “Another hobby of the first lady is giving singing lessons to the president,” Jung wrote. “They were such an affectionate couple that they even practiced songs as duets.” Jung’s account was created in