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On the June 27th anniversary special, Yoo Hee Yeol was surprised by video messages from his previous guests on the show who shared their wish for 'Yoo Hee Yeol's Sketchbook' to go on for a long time. Yoon Do Hyun also shared his hope that it lasts longer than 'Yoon Do Hyun's Love Letter'.

IU said, "Hello, it's IU. It's already 'Sketchbook's 5th anniversary. Congratulations. Thank you, uncle Hee Yeol. Uncle Hee Yeol's hawk eyes made who I am today. I hope that when I turn the age that uncle Hee Yeol is now, 'Sketchbook' will still be on air then. I ask that you will treat me fondly then uncle. When I turn 40, you'll be... I hope that you stay healthy until then," bringing laughs.

Check out their video messages below (starts at the 25:10 mark)!