At six, James won a festival of
Christmas music in
Szczecinek, Poland. In 2020, she came third in the World Talent Show, and won an award in the final of the Lubuski Song Festival "Pro Arte" where she also placed third. In 2021, she competed in the
fourth season of the Polish talent show
The Voice Kids. She advanced to the final, and was voted the winner. Through another Polish talent show, (), she was selected to
represent Poland in the
Junior Eurovision Song Contest 2021 with the song "
Somebody". At Junior Eurovision, she finished in second place with 218 points (102 points from online voting and 116 points from the jury), six points behind the Armenian representative and eventual winner,
Maléna. In 2022, James auditioned for the
17th season of ''
America's Got Talent''. Her performance of
Billie Eilish and
Khalid's song "
Lovely" resonated with the judges and led
Simon Cowell to push the Golden Buzzer, sending her directly to the live shows. She qualified for the final, where she performed with
The Black Eyed Peas, but did not make the top five. In 2023, she appeared on the show's spin-off, ''
America's Got Talent: All-Stars''. James won the 2023
Fryderyk award for Phonographic Debut of the Year. She voiced
Ariel in the Polish-language version of
Disney's 2023 musical fantasy film
The Little Mermaid, and recorded songs for its soundtrack. Her debut studio album,
Playhouse, was released under
Polydor Records on 8 November 2024. It earned a Fryderyk nomination for Album of the Year – Pop. == Discography ==