Katarzyna Drelich started her music education at the age of 7 with guitar lessons. In 2022 she graduated in vocal performance from the Fryderyk Chopin University of Music in Warsaw. She made her professional debut in 2017 as Despina in Mozart’s Così fan tutte with the Świętokrzyska Philharmonic. She reprised the role for the 52nd edition of the Jan Kiepura Festival in Krynica Zdrój. In 2019 she sang the soprano part in Schnittke’s Requiem at the Warsaw Philharmonic Hall and was Papagena in Mozart’s The Magic Flute at the Warsaw Chamber Opera and on a tour of Japan.
Since 2019 Drelich has been a member of the Opera Academy of the Polish National Opera, where she trains under Izabella Kłosińska, Olga Pasichnyk, Michał Biel, and Katelan Tran Terrell.
In 2021 she released her first album Peine et plaisir with songs by Polish composers of the 19th and early 20th century. In April 2022 she made her role debut as the Queen of the Night in The Magic Flute at the Warsaw Chamber Opera, then reprised the role for the Polish Royal Opera. In 2023 she returned to the Warsaw Chamber Opera to portray Lucy in Menotti’s The Telephone.