He was cast as a host for "Melody Bookstore" in September 2019, which aired on JTBC beginning October 6. In the show, the hosts have to choose a book and create a theme song according to the chosen book. He wrote and composed the soundtrack for the show, ""This Is Me"", which was sung by Sunwoo Jung-a and Suran. He also became the host of "Hidden Track" in October 2019. The program focused on introducing song that are not one's title tracks. The show was jointly produced by JTBC and KT, and was aired live on Olleh TV for eight weeks, starting from October 2, 2019.