Lewis came to prominence throughout Great Britain following her blind audition for
series 2 of the
British version of
The Voice, singing a version of the song "
Fields of Gold" by
Sting in both Welsh and English. The two coaches that had a spot left on their respective teams (
will.i.am and
Jessie J) did not opt to select Lewis for their teams. Although she did not progress past the auditions round, this exposure helped bolster her career beginnings. Subsequently, she had a role in the film
Pride, which won a
BAFTA award, singing the song "
Bread and Roses". Following her role in
Pride, Lewis collaborated with English producer
Hugh Padgham. Her first album,
Home, was released in 2016 and reached Record of the Week on
BBC Radio Wales. The album's lead single, "Ti a Fi," was inspired by her grandparents' lifelong relationship. She has performed throughout the United Kingdom, including several tours with the singer and performer
Max Boyce. She published the album
Live in Swansea with Boyce in 2019. During the lockdown caused by
COVID-19 in Wales, Lewis gained a large amount of support on social media when she performed around 45 concerts from her home studio. Her
TikTok videos, which included Welsh language versions of well-known English songs, also went viral. This brought her attention on the
BBC Radio 1 Breakfast Show with
Greg James. At the end of 2020, Lewis released her debut
EP,
Simple Things. The EP featured original compositions as well as traditional works such as "
Myfanwy". Lewis released her third album,
Canvas, in 2021. She began presenting a Sunday program to
BBC Radio Wales in March 2023. In 2025, Lewis debuted as a coach on
Y Llais, the Welsh version of
The Voice alongside
Sir Bryn Terfel,
Aleighcia Scott, and
Ywain Gwynedd. She began this role thirteen years after her audition on
The Voice UK. She returned as a coach for her second season in 2026. On 13 June 2025, Lewis released her fourth studio album,
Finding Me. In 2026, Lewis began the "Bronwen's Big Night In" tour which included a sold-out performance at the Swansea Building Society Arena. == Artistry ==