The single featured on her 2024 album 'C,XOXO'
The singer plays a comedic version of herself
The movie is based on the 'Brat' pop star's own original idea
The singer will instead be headlining the Other Stage on the Saturday
They join previously announced acts like The Japanese House, A.G. Cook and The Dare
It's the actor's first screen appearance in six years
The luxury offsite camping was host to various secret sets last year
Charli will be headlining the Other Stage while Doechii headlines West Holts on Saturday night
It's currently unclear if she'll contribute a musical component to the film
The first names for this year's festival were announced today (March 6)