SBS's "Strong Heart" gave fans a hilarious teaser of Boom's return on next week's show. Although the teaser was short, it's apparent that he hadn't let his variety skills rust during his time away in the military. Before entering the military in 2009, Boom created the "Boom Academy" which lead to the very popular "Leeteuk Academy"  consisting of Leeteuk, Shindong, and Eunhyuk. Now the original creator of the segment is back, and his wit seems sharper than ever! Aside from "Strong Heart", netizens are also anticipating Boom's appearance on SBS's "Star King" and SBS's radio power FM's "Young street" as a DJ. Check out the trailer for next week's episode below: Source: Star News via Naver