How sure are we about SZA headlining the Pyramid? If I'm correct we only have 1 source pretending this, right?
I'm nog buying it. She has had a LOT of streams recently, but I suppose the vast majority of them comes from the US. She's really not well known in UK or Europe by the average music lover. Just look at the other festivals she's playing in Europe this summer: small ones (We Love Green, Primavera Porto) or mid-sized (Primavera Barcelona). Primavera festivals target a specific market of alternative music fans, a totally different approach than Glasto that targets a way bigger, more diverse audience.
Not only is she as a person/artist completely unknown to the average Brit/European, even her songs with >1 billion streams didn't have a lot of airplay on radio stations etc. (I'm Belgian, maybe in the UK she had more airplay).
She has 0 festival anthems. Looking at the previous years, that 's a big box to check to headline the Pyramid. Even Lana, who is also really big in terms of streaming and who is headlining other big European festivals, played the Other last year. And on top: for what I know SZA doesn't have a stunning live reputation.
So... I really doubt Emily has booked het for Pyramid closing act. Would be a perfect Other headliner, tho. And I'd take her over other rumours as KoL any day. But no, as long as there's no announcement, I don't believe this rumour. Field would be historically empty & BBC won't have a lot of viewers.