She was born in 1984 in Augustów but was raised up in Białystok and graduated from an artistic high school in Supraśl. She studied at the Maria Grzegorzewska University and currently works in Bemowo Culture Centre, where she takes care of artistic education and local community animation.
She has released two albums within the framework of the project Nathalie & The Loners: Go Dare (2009) and Being Sane in Insane Places (2012). The former was described by Kasia Wolanin (Screenagers) in a following manner:
Go Dare shows two Natalia Fiedorczuk's countenances: one of a typical singer/songwriter, who is the second, after Julia Marcell, Polish singer whose extraordinary composing and vocal skills enable to compete with artists abroad. There is a strong reference to the old and contemporary 'classic female singing'. However, as in Marcell's case, here, there is no place for calking anybody (…) Fiedorczuk as a traditional singer/songwriter looks dignified and persuasive in each and every composition.
The second countenance of Nathalie & The Loners is announced by the psychedelic album opener. Despite the fact that this motive will come back in Mouths Cradle, Go Dare surprises by something completely different. Vod, Sunday and most of all It Is So shows Natalia Fiedorczuk as a witty interpreter of dream-pop electronic music more in the manner of Apparata than some older classics of the genre.
Since 2008, Fiedorczuk has been a vocalist and text writer for the band Happy Pills with which she released the album Retrosexual (2010). She has also collaborated with such bands as pl.otki and Orchid. Since 2011 she has been a member of a folk project known under the name Ścianka Maćka Cieślaka PTKCSS, while since 2012 she has performed with Urlatori e Łobuzzi, a band famous for covering Italian hits from the previous century. Fiedorczuk has composed scores to Anna Smolar's (Polski Theatre in Bydgoszcz) Dybuk and Karolina Bielawska's documentary Call Me Marianna.
The multi-talented artist is also the creator of Rental (Wynajęcie), an album released by 'Bęc Zmiana Foundation' that documents the process of apartment hunting in Warsaw.
In 2016, artist's debutant novel was released by 'Wielka Litera'. How to Fall in Love With Shopping Centres comes from author's private experiences with motherhood and postnatal depression but exceeds those issues, becoming a record of serious personality breakdown. The author stated in an interview with Sylwia Szwed for 'Wysokie Obcasy':
It is all about the moment in life when everything changes. A hurricane that revolutionizes one's point of view. In my case that hurricane was my motherhood. My book is an attempt to confront the inner crisis and complicated feelings of isolation, disconnectedness from the real world and foregoing experiences in the face of something that changes personality, something you would not choose deliberately.
Who am I when I born a child? Am I still myself? Or am I everything: mother, wife, chef, sitter, hugging arms, busy hostess but not myself? Fiedorczuk writes about isolation, disarticulation, disappointment without feeling sorry for oneself, with irony rather than affection. Justyna Sobolewska wrote in 'Polityka':
Fiedorczuk's narration lacks sentimentalism (often used in the context of motherhood) but is full of auto ironic type of humour. Why are 'shopping centres' in the title? That is where lots of women with trolleys hide in the forenoon. Instead of wandering around the hostile city, they seek a moment for themselves when their children fall asleep. I have a coffee surrounded by other mothers with trolleys. They don't look at each other. They know.