With Super Junior on a temporary hiatus for much of 2016 due to the enlistment of four other members, he returned to hosting. In March 2016, Heechul was confirmed to become a temporary host for "Weekly Idol" until October 5, when Jeong Hyeong-don ended his 11-month break from television activities. On April 15, 2016 he released a duet with Wheein for SM Station. The single "Narcissus" was written by him and produced by Jungmo, and it was his first collaboration with a female artist. In early July 2016, M&D returned as "Kim Heechul & Kim Jungmo", with a second EP, "Goody Bag", and trot-rock title track "Ulsanbawi" on July 12.