IU is definitely a big fan of Sulli.
On March 13th, IU guested on MBC FM4U "Kim Shin Young's Hope Song at Noon". The DJ asked."If you could reborn again then who would you be?"
IU replied,"I have a folder in my computer in which it contains many photos of pretty celebrities, and the one that have the most photos is Sulli. In my opinion, Sulli is the most beautiful female celebrity in Korea"
Then she mentioned how people said she looks like Shin Bong Sun and Han Ji Min and then jokingly said,"We are an inseparable trio".