HIGH4’s agency revealed the photo, taken in 2012.
In the sticker photo, rookie group HIGH4’s member Sunggu stands in the back.
IU will support the new group by featuring in “Spring, Love, not Cherry Blossoms”, a duet song in which IU produced and wrote the lyrics of.
IU and HIGH4’s Sunggu met in 2006 as trainees in A.P Company (the old N.A.P Entertainment), and their friendship has continued since then.
Cheondung has also introduced Sunggu as his best friend while on MBC “Idol Manager”.
Meanwhile, HIGH4 consists of four members who went through 2-7 years of training: Sunggu and Myunghan as vocals and Youngjun and Alex as rappers. With IU’s support High4 will debut on April 8th.