The idol appeared on the February 10 episode of 'Singderella' in a military uniform to show that he recently got discharged from the military. During the show, he shared about his time completing the mandatory service and was also asked which girl group he liked the most. In response, Shindong said, "There is a group that I liked among the photos that my fans sent me. I had Red Velvet's Wendy and Seulgi on my locker."
He also revealed, "I found a donor for cup ramen in exchange for a signed Red Velvet CD."