Anderfjärd produced the Swedish Sverigetopplistan top-20 singles "I Do Me" by Malou Prytz and "I'm Coming" by Tove Lo, as well as contributed backing vocals on the Weeknd's "Take My Breath" and Swift's "Message in a Bottle", both which reached the top 10 on the United States Adult Top 40 chart.
She has worked with artists such as Katy Perry, Addison Rae, Anne-Marie, Ed Sheeran, Tove Styrke, Alma, Benee, First Aid Kit, and Maisie Peters.
Influenced by Australian record producer Flume,[1] Anderfjärd gained first production jobs throughout 2018 and 2019, working on "4U" (2018) by Joakim Molitor featuring Cher Lloyd, debut single of Malou Prytz "I Do Me" (2019), and a remix of Tove Lo's "Glad He's Gone" (2019).
[1] During 2021, Anderfjärd worked on Molly Sandén's "Kärlek Slutar Alltid Med Bråk",[2] Anne-Marie's "Beautiful",[5] and Swift's "Girl at Home (Taylor's Version)" and "Message in a Bottle".
[6] Two years later, she was one of the producers of Alma's Time Machine and Maisie Peters' The Good Witch (both 2023).