Jonas Engelschiøn Mjåset, known professionally as Aden Foyer (formerly Jonas Aden), is a Norwegian music producer, singer, and songwriter. He was born on September 8, 1996, in Oslo. His career began in 2015, releasing unofficial remixes of popular tracks like "Lean On," "Heads Will Roll," and "Secrets" which earned him initial attention. He began making a name for himself within the EDM future house genre under the name Jonas Aden. His first official release came in the fall of 2015 with the single "Fall Under Skies," a collaboration with Robby East on Heldeep Records. This debut track quickly gained popularity, amassing millions of plays on SoundCloud and reaching number 22 on the Beatport House Charts. His follow-up single, "Temple," released in spring 2016, entered the Top 40 on Beatport House Charts. In June 2019, his collaboration with Rebmoe on "I Don't Speak French (Adieu)" reached number 10 on the Belgian Dance music charts. In January 2021, he released "I Hope You Know" with Mike Williams under Universal Music. However, shortly after he announced a break from music to focus on his mental health. In October 2022, he made a comeback under the new moniker Aden Foyer, with a more singer-songwriter approach to music. His pop-influenced return single, "The Ballet Girl," reached number 2 on the Norwegian singles chart. In late 2023, Aden Foyer released the song "Your Face on Christmas Day," landing in the Top 100 of the Sverigetopplistan.