Sulli cheered for his best friend IU.
Sulli posted a picture taken at the IU Concert with his article "I will celebrate Jing Chan Yuana tenth anniversary # I will be on your side" on his 18th instagram.
In the open photo, Sulli is smiling brightly with a plan card with the phrase "I will always be blooming by your side".
Sulli cheered for the best IU in search of the tenth anniversary memorial Concert of IU held at Seoul Seoul Olympic StadIUm.
IU, who has been in Seoul Olympic StadIUm for the first time in 10 years, will expand its scale from December to Asia Tour and meet local fans in four cities from Hong Kong on the 8th, Singapore on the 15th, Bangkok on the 16th and Taipei on the 24th to 25th.
Kang Han-na Instagram
About IU
Lee Ji-eun, also known by her stage name IU, is a South Korean singer-songwriter, record producer and actress. She signed with LOEN Entertainment in 2007 as a trainee and debuted as a singer at the age of fifteen with her first mini album Lost and Found.
 Wikipedia