Chunoook (Thomas Klins) is an Asian-American artist born in the UK before later moving to the USA. He has been making music since the age of 15.

His first post as Chunook on social media was uploaded on November 23, 2024, where he promoted one of his then-upcoming indie pop songs, Disappointment, by lip-syncing to it while playing guitar alongside the track.

He removed all of the music he had released prior to the single Complex on the 10th of July 2026, explaining that he wanted a fresh start.