During IU's concert 'Twenty-Four Steps: One, Two, Three, Four' on December 3 and 4, she opened up about her controversial release last year, 4th mini-album, 'Chat-shire.' 

She said, "I wanted to create an album in which I could be honest.  I pressed into it the things I felt as a 23-year-old, the boredom and gravity of life, and my playfulness.  The day I finished working on that album, I had a good night's rest."

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However, the mini-album constantly found itself in controversy, including over the song "ZeZe," which was deemed too suggestive; and therefore, she was unable to get good reception for the album.  She said, "It was my first time producing [an album] so there were many weak spots and I felt greatly sorry.  I felt regret, thinking I had to create better music for people to listen to, but the album in its state is still who I am.  It's my 'injured finger.'"