IU "90 degrees greeting."

Singer IU poses at an acoustic device Event held at Dongdaemun Square Seoul, JW Marriott, Jongno-gu, Seoul on the morning of the 20th.

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