Heechul appeared as a guest on "Weekly Idol," showed extraordinary loyalty with his close friend Defconn.

The New Year's Day episode of MBC Every1's "Weekly Idol" will feature talented entertainer and Defconn's close friend Kim Heechul.

MC Defconn said, "If Jung Hyung Don has GD (G-Dragon), then I've got Kim Heechul" and announced his close knit ties with Heechul. Heechul responded by saying, "I'm currently not pursuing any activities, but I had to come out because Defconn called me as a guest" and proved his loyalty to the show's MC.

The two met when Heechul had his radio show, as Radio DJ and guest. It's already been 4 years and rumor has it that they're very close.

MC Jung Hyung Don responded by saying, "GD and I show our affection for one another by whispering in each other's ears and giving back hugs," and challenged Defconn and Heechul to prove their friendship.

They responded, "We don't have that kind of relationship" and strongly denied his request. However, in the end they did pass show each other through some tests of affection, which made for a hilarious episode. They even played the 'apple game,' in which they transfer an apple back and forth between them. The two showed a lot of playful physical contact playing the game, not unlike that of GD and MC Hyung Don.

If you want to see Defconn and Heechul's affection test, you can watch it January 1st on MBC Every1's "Weekly Idol."