Why did Elton John in vicar of Dibley?

Elton John made a cameo appearance in the British sitcom "The Vicar of Dibley" during a special episode titled "Love and Marriage." He performed at the wedding of the character Geraldine Granger, played by Dawn French. His appearance was a humorous highlight, showcasing his personality and charm while adding a star-studded moment to the beloved series. This guest spot exemplified the show's ability to attract well-known celebrities for comedic effect.