He hosted the 4th Asia Artist Awards on November 26, 2019, which was held at Mỹ Đình National Stadium in Vietnam. On December 6, it was announced that Leeteuk would be returning as the host for "Idol Star Athletics Championships (ISAC)" in 2020, along with Twice's Dahyun and Jun Hyun-moo. Pre-recording of the show is set to begin on December 16. He also hosted the 9th Gaon Chart Music Awards on January 8, 2020 for the fifth time, with Itzy's Lia as co-host.