IU was featured as the first guest on the new SBS show "Jung Jae Hyung and Lee Hyori's You & I."

Lee Hyori asked her "What is my reputation as a sunbae (senior) among young singers these days?"

And IU replied "You are such a big big sunbae. You are so much older, experienced, and knowledgeable."

This caused Hyori to retort "I'm not such a big big sunbae. I'm not that old."

Then, Hyori asked IU what she thought of Um Jung Hwa. And IU replied "I've met her couple of times and she was always smiling and gentle and she seemed like a very nice person."

This caused Hyori to answer "Oh so Um Jung Hwa is nice and gentle and I'm...well I guess I should be nicer to younger singers from now on," getting the audience to smile.

On the show, IU showed off her vocal skills through "You & I" "Fields of Gold" and "The Child looking for the Star."