Photo Illustration by Erin O'Flynn/The Daily Beast/Getty ImagesBefore Christian Nodal, the tattooed prince of ranchera music, could take his place at the center of the palenque at the Feria de San Marcos earlier this year, the dirt arena had to be cleaned. A day’s worth of cockfights had left the site of the stage bloodied and strewn with feathers.A warm-up act came next. Thousands of fans had descended upon the capital of the tiny Mexican state of Aguascalientes to see Nodal open the annual fai