Marie Ulven Ringheim (born 16 February 1999) known professionally as girl in red (stylised in all lowercase) is a Norwegian singer-songwriter and record producer.

Girl in Red has been cited as a queer icon by Paper,[2] and "one of the most astute and exciting singer-songwriters working in the world of guitar music" by The New York Times.

[2] Ulven received her first guitar as a Christmas gift from her grandfather in 2012, but didn't start playing it until 2013 after losing interest in fingerboarding.

After getting a Blue Yeti microphone from her father in 2015,[10] Ulven began writing and releasing Norwegian music to SoundCloud under the moniker of "Lydia X".

[2][13] She stopped attending guitar lessons after six months once her teacher refused to acknowledge her interest in songwriting and producing.

[14] Using the new moniker, she published her debut single "I Wanna Be Your Girlfriend" on SoundCloud in November 2016,[15] where it got about 5 thousand streams within five months.

[16] Following the single's feature on the Norwegian music website NRK Urørt, "I Wanna Be Your Girlfriend" amassed thousands of streams and gained Ulven a large online following.

[27] She released Chapter 2, her second EP, as well as Beginnings, a compilation of her entire single catalogue into one exclusively vinyl album, on 6 September 2019 through the music company AWAL.

[28][29][30] She embarked on her first international headlining "World in Red" tour in September 2019, performing in cities such as Dublin and San Francisco.

[38] In May 2020, Ulven was included in the annual Dazed 100 list after her single "I Wanna Be Your Girlfriend" passed 150 million streams.

[48] The cover artwork for the album, made by Norwegian painter and artist Fredrik Wiig Sørensen, was originally an oil painting on a 80x80 cm canvas titled The Antizero.