Antonio, Joshua, and Caleb Gámez-Cuéllar stand in front of Gruene Hall ahead of their performance as an opening act for country singer Kacey Musgraves in New Braunfels, Texas on May 4, 2026. The three brothers were recently detained by ICE along with their parents and held for 13 days at the detention center in Dilley, Texas. Brenda Bazán for NPR hide caption toggle caption Brenda Bazán for NPR NEW BRAUNFELS, Texas — Outside of the iconic Gruene Hall, often called Texas' oldest continuously operating dance hall, men and women wearing cowboy hats and boots start lining up. They are there early to see country superstar Kacey Musgraves debut her latest album "Middle of Nowhere." But heads turn when the Mariachi brothers Antonio, Caleb, and Joshua Gámez-Cuéllar walk past — wearing their charro suits, with embroidered white and blue florals, and their big, red bow ties.…