"I really hope that the people who came to see Sam today can get just five per cent out of this song," Boone told the crowd.
Chaka Khan, Royel Otis, Lionel Richie, Diana Ross, Finneas and Alanis Morissette will also take the stage at the 59th annual festival.
After a triumphant night at the 2024 Brit Awards, where she scooped a record six trophies, Raye will perform on the Lake Stage.
Sam Smith, Lil Nas X, Nile Rodgers and Janelle Monáe are among the big stars confirmed for this year's show.
