Ticket resellers, you can say it’s just the way you are — make a new excuse, another stupid reason … but if you’re trying to get artists on your side? Good luck, babe. Chappell Roan already mentioned her ex onstage at Coachella, but she’s not done with the public callouts just yet. She is one of nearly 300 artists — including Billie Eilish, Green Day, Lorde, Diplo, Nile Rodgers and more — who recently signed a letter urging lawmakers to reform the concert ticketing system.