[1] After moving to Calgary in his teens and playing in various rock bands, Klassen released his solo debut Tempest and Winter in January 2009 and soon after relocated to Vancouver.
[2] While continuing to record and tour independently, Klassen released his EPs St.Brigid and Kindness.
[3] In June 2013 Klassen signed to Nevado Records,[4] and on September 24, 2013, released Repentance.
[21] Klassen also produces for and writes with several other artists, including Dear Rouge, The Tourist Company, Jillian Lake, and Georgia Lee Johnson.
[22][23][24] He also has written tracks for and had his songs placed in TV and film, with credits on the soundtracks for The Sense of an Ending, Teen Wolf, Hello, My Twenties!, and Nashville.