In 2017, Walker's channel became the most subscribed YouTube channel in Norway. The same year he released the song "Ignite" together with Norwegian music producer K-391. He then released "Tired" with Gavin James. On 9 June 2017, he released "Sky" featuring Dane Alex Skrindo. He then released other songs such as "Spectre", "All Falls Down" with Noah Cyrus and Digital Farm Animals, "Ignite", "Darkside" with Au/RA and Tomine Harley, and "Diamond Heart" with Sophia Somajo.