Popular comedian and variety star Boom recently recorded his comeback appearance on TV through�MBC's 'Radio Star'. The talk show's topic this time around centered on military life, since cast member Kim Heechul was about to embark on his mandatory military service.�Boom was joined by hip hop duo Dynamic Duo, who had all just completed their two-year service with the army. Stay tuned for updates on this upcoming broadcast! Source: EDaily via Naver