HaHa gave a shout-out to his good friend, MC Mong, who is undoubtedly going through a rough patch in his career.

SEE ALSO: MC Mong talks with jTBC's 'Entertainment Exclusive'

On the June 28^th broadcast of tvN's 'Genius: Rules of the Game', HaHa was called to the show by Lee Sang Min. Upon seeing HaHa, Lee Yoon Yul shared, "I've met you in person once before...I featured as a guest on MC Mong and HaHa's radio show long ago."�

Hearing MC Mong's name immediately struck a chord with HaHa so he gave a shout out to MC Mong saying, "I miss you! You're doing well, right? Gain strength, friend!"