Kim Jong-hyun, known mononymously as Jonghyun, was a South Korean singer-songwriter, record producer, radio host, and author under the SM Entertainment label. He was the vocalist of the South Korean boy band Shinee for nine years, releasing twelve albums with the group in both Korean and Japanese. He also participated in SM Entertainment's project group, SM the Ballad, for the release of two EP albums.

A boy band is loosely defined as a vocal group consisting of young male singers, usually in their teenage years or in their twenties at the time of formation. Generally, boy bands perform love songs marketed towards girls and young women. Many boy bands dance as well as sing, usually giving highly choreographed performances. South Korean boy bands usually also have designated rappers.