Rumors started when 'Powerful Opponents' panelist Lee Bong Gyu claimed other top stars were present at the adult entertainment bar on June 4 when Yoochun is claimed to have sexually assaulted a woman. Lee Bong Gyu said on Chosun channel's 'Powerful Opponents', "There were very high-profile Hallyu stars at the adult entertainment bar that night. Yoochun held a birthday party at the business they frequented as customers."
Soon afterwards, speculation spread on online community sites that the top stars were 'Descendants of the Sun' actor Song Joong Ki and rising actor Park Bo Gum. According to Dispatch, however, the rumors are completely groundless. On the night of June 3-4, Song Joong Ki had just finished attending the 'Paeksang Arts Awards' and was spotted with Song Hye Kyo, Yoo Ah In, and drama staff after grabbing a celebratory meal together.
It looks like Song Joong Ki was caught up in these rumors over nothing!