Girl group SPICA's Kim Boa revealed IU's awkward yet adorable way of showing her support on the May 22nd broadcast of 'Strong Heart'.

Boa confessed that there was a time when the young IU touched her behind. She stated, "One day, we were at an 'Inkigayo' rehearsal, and it had just ended. As I was walking off stage, I felt someone touch my butt.  As I turned to see who it was, I saw that it was IU."

She continued, "A lot of other singers were looking at us so I was very embarrassed.  After the live broadcast, I came down the stage, and she touched me again," surprising all the guests.

IU was asked, "Why did you touch her butt?" and replied, "We spent our trainee days together, and she is an unnie who I am very grateful to. Watching her debut stage I felt very proud."

Source: Star News via Naver