It was previously reported NUEST's JR and comedian Park Sung Kwang would be appearing, and now HyunA has been added to the lineup. On August 22, JTBC confirmed, "HyunA, JR, and Park Sung Kwang are appearing on 'Knowing Brothers'. They're filming on the 24th."
The trio's episode of 'Knowing Brothers' is scheduled to air on September 9 KST.
In other news, JR is currently a regular member on JTBC's 'Night Goblin', and HyunA's 6th mini album 'Following' is dropping on August 29.