The 25-year-old pop star is hoping to become the UK's first Eurovision winner since 1997.
All the British acts who have claimed the Eurovision trophy.
The singer won the contest in 1997.
The grand final of the 2023 Eurovision song contest will take place on Saturday, 13 May, and there is already a favourite to win it all.
Muller will be performing her track I Wrote A Song.
The contest will be held in May.