Holly Mae Muller (born 26 August 1997) is an English singer and songwriter. She first received mainstream recognition after releasing the single “Better Days” in 2021, a collaboration with Swedish music collective Neiked and American rapper Polo G, which went on to chart in the top 40 in both the United Kingdom and United States. She represented the United Kingdom in the Eurovision Song Contest 2023 in Liverpool, with the song “I Wrote a Song”, which became the first UK Eurovision entry in over a decade to debut in the UK Singles Chart’s top 40, later becoming her first single to reach the top 10. In the competition final, the song finished in 25th place with 24 points. She is set to release her debut studio album Sorry I’m Late in September 2023.

Muller was born in Kentish Town, London, and was raised by parents Matt Müller and Nicola Jackson, who separated when she was six. Her aunt is the music video director Sophie Muller.[citation needed] She has an older brother, Sam, and three younger half-brothers from her parents’ subsequent relationships. Her grandfather, Robert Müller, was a refugee who escaped to Britain from Nazi Germany at the age of 12, and settled in Wales.

Muller first began writing her own music at the age of eight and attended Fine Arts College in Belsize Park, north London. In 2007, as a child, she appeared in the music video for “Grace Kelly” by Mika. While working at American Apparel and in a pub in Kentish Town, Muller began publicly performing. Muller asked a friend who knew how to use Logic to produce a few demos in exchange for a bottle of wine. She uploaded them to SoundCloud in 2017, and after sharing a video of her singing on Instagram, Muller was discovered and signed by her manager. Her debut extended play, After Hours, was released in February 2018, and was followed by the release of her second EP, Frankly, in September 2018. Muller signed to Capitol Records UK in the same year.

On 5 April 2019, Muller released her debut compilation album, Chapter 1. She then supported Little Mix on their 2019 LM5: The Tour. Following the tour, she released a single titled “Therapist”, which she had performed on the tour. Alongside the release of “Therapist”, Muller also announced her first national tour, visiting five cities across the United Kingdom. In September 2020, she announced that her third EP would be released on 6 November 2020. The EP, titled No One Else, Not Even You, was supported by a headline tour across the United Kingdom and Europe.

In 2021, Muller appeared as guest vocalist on “When You’re Out” with Billen Ted. She then joined the Swedish artist collective Neiked and the American rapper Polo G on the single “Better Days”, a song which was a new entry at number 57 on the Billboard Hot 100 chart of 30 October, later peaking at number 23. “Better Days” scored a Top 10 US Pop Airplay and also charted on the UK Singles Chart, reaching a peak position of number 32.

Muller performing at the Eurovision Song Contest 2023 in Liverpool, United Kingdom. On 3 March 2023, Muller released a collaboration with Sigala, Caity Baser and Stefflon Don, titled “Feels This Good”. On 9 March 2023, she was announced as the UK’s performer for the Eurovision Song Contest 2023 in Liverpool. Her entry, “I Wrote a Song”, was released on the same day, accompanied by a music video. In the competition final on 13 May 2023, the song finished in 25th place out of 26 contestants with 24 points.

On 25 May, Muller announced her debut studio album Sorry I’m Late would be released on 15 September 2023. Muller will debut in her first feature film in late 2023 as ‘Kelly’ in “Gassed Up” on Amazon Prime Video, directed by George Amponsah. Muller lists Gwen Stefani, Lily Allen, and Florence and the Machine amongst her musical influences. She grew up listening to her mother’s favourite artists, including The Chicks, and Simon & Garfunkel. Muller described hearing Lily Allen’s debut album, Alright, Still, as a pivotal moment for her.