'Trot IU' Yo-Yo albumy, recorded on 16th Running Man'...Reunited with Heritage castle on December 10, 2019 Singer Yo-Yo ready, called 'Trot IU', appears on SBS Running Man'. About Yo-Yo already Park Yun-a, better known as Yoyomi, is a South Korean trot singer-songwriter and actress.  Wikipedia