This is what we found on Wikipedia regarding the girl in red:

Marie Ulven Ringheim (born 16 February 1999) is a Norwegian singer-songwriter and record producer, known for her indie pop project girl in red (stylised in all lowercase). Her first EPs Chapter 1 (2018) and Chapter 2 (2019) were recorded in her bedroom and feature songs about romance and mental health. Released independently through AWAL, her debut studio album If I Could Make It Go Quiet (2021) was a critical and commercial success, and won three Norwegian Grammy Awards, including Album of the Year. She then signed to Columbia Records and released her first major-label album, I'm Doing It Again Baby!, to moderate success in 2024.

girl in red has been cited as a queer icon by Paper, and "one of the most astute and exciting singer-songwriters working in the world of guitar music" by The New York Times. She has sold over five million certified digital units in the United States according to the Recording Industry Association of America (RIAA). She was awarded the Telenor Culture Prize in 2022 for her "artistic distinctiveness and explicit messages of boundless love".