Singer IU will be appearing as guest on Wanted's upcoming concert. Despite her busy schedule with her Japanese activities, IU will show her support to the group, proving she is a truly loyal national little sister.

The main reason why IU will be appearing on the concert is the fact that she was once a trainee of Wanted member Ha Dong Gyun. She used to receive guitar lessons and vocal training under Ha Dong Gyun.

IU also had the opportunity to participate in one of Wanted's song even before she debuted. IU's voice back when she was a middle school student was recorded into the track "Can't Bear The Sight Of It". She was also featured on the single "Like You". Both songs are from the group's 3rd official album "Vintage."

According to Wanted’s agency WS Entertainment on March 8, IU will be appearing on Wanted's upcoming concert “Back To Vintage”, which will take place on April 1.