According to a media outlet, Key and Hanhae will participate in this weekŌĆÖs recording of Amazing Saturday. Key and Hanhae were original cast members of the show but exited mid-way in order to fulfill their mandatory military duties. And the two, who have completed their military service, will visit Amazing Saturday as special guests. In particular, attention is being paid to what kind of chemistry they will show with Nucksal and Block BŌĆÖs P.O, who joined the program as their replacements. In addition, another key point will be whether the two artists will still be able to show off their ŌĆ£listening skillsŌĆØ after a long time. The episode featuring Key and HanhaeŌĆÖs guest appearances will air as early as this month. Source (1)