Lee Jong-hyun, also known by his mononym Jonghyun, is a South Korean musician, singer-songwriter and actor. He was the former lead guitarist and vocalist of South Korean rock band CNBLUE. He made his

"Robot" is a song by the South Korean rock band CN Blue, written and produced by Jung Yong-hwa and Kosuke Oba. It was released on December 19, 2012 in three different editions as the group's fourth ma