Teen Top (Korean: 틴탑) is a South Korean boy band formed by TOP Media in 2010. The group is composed of four members: Chunji, Niel, Ricky and Changjo. Originally a six-piece group, L.Joe had filed for contract termination in February 2017, and former leader C.A.P. left the group on May 11, 2023. Teen Top debuted with their first single album Come into the World on July 9, 2010.

Ahn Daniel, better known by his stage name Niel (Korean: 니엘), is a South Korean singer, songwriter and actor. He is a member of the South Korean boy group Teen Top. Niel released his first solo EP titled oNiely on February 16, 2015.