Katy Perry left fans with eyebrows raised as she sang along to her hit track Firework at the King's Coronation concert.
The 38-year-old sang through a series of her biggest hits and put on an incredible performance for the 20,000 audience members and the new King and Queen.
However, some fans were confused when they realised a lyric in her song Firework had an "awkward" historical meaning that could be perceived as offensive to King Charles and the history of the monarchy.