I just saw Rock am Ring in Germany did a video announcing blink-182 will be playing it next year during this year's festival there.
We talked about when Glastonbury announces it's first headline act but that would be different if they announced a 2028 headliner during next year's event.
Takes a few seconds to load up;
https://theriffreport.co.uk/03/06/2025/🎪-where-does-your-380-glastonbury-ticket-really-go-the-truth-behind-the-festivals-non-profit-magic-🧾✨/