(If you don’t know Finneas, he’s probably the most famous one here. He’s Billie Eilish’s brother/ producer-writer; he’s usually on stage w her and they’re seen as a duo unit, but I think he’s doing some more solo stuff now. Billie’s also spoken in support of Palestine)
Ed Sheeran when his remaining acts, 2 of whom are Irish and the other 2 Gen Zers, don’t stand for Zionist censorship: 
Ed “I don’t take sides on genocide” Sheeran, sole headliner for his tour and set-for-life rich, just couldn’t do anything he’s just a smol bean