At the age of two, he moved to Bergen, Norway, along with his Norwegian mother and British father.
Growing up in the digital era, Walker found an early interest in computers which later turned into a fascination for programming and graphic design. In 2012 he started making music on his laptop, and with the help and feedback from his online friends, his songs soon caught the attention of the record labels.
His song "Fade" gained attention after its release on YouTube, he got signed to the label No Copyright Sounds. "Fade" was followed by the tracks "Spectre" and "Force" in 2015, all written and produced by Walker himself.
Walker's first single with Sony Music Sweden was the track "Faded", a vocal version of "Fade", released December 4, 2015 and featuring female vocalist Iselin Solheim. The song topped both the Norwegian VG-lista singles chart and the Swedish Sverigetopplistan charts, and was a Top 10 hit as well in Finland and Denmark, with appearances also on Italian, German, Dutch and Irish charts.
