Antonio, Caleb and Joshua Gámez-Cuéllar were arrested and held in custody with their parents earlier this year. Kacey Musgraves Christopher Polk Kacey Musgraves is teaming up with musicians from her home state of Texas on a trio of upcoming album release shows, with the country star announcing Tuesday (April 28) that she’ll be joined by The Mariachi Brothers — aka the three boys who were detained by ICE earlier this year despite previously performing on Capitol Hill — on the outing. The shows will take place at Gruene Hall in New Braunfels, Texas, on May 3, 4 and 5, kicking off two days after Musgraves’ new LP Middle of Nowhere is set to drop. The Grammy winner got the word out by simply sharing a poster for the event on Instagram reading, “Kacey Musgraves … with special guests The Mariachi Brothers.” Below that, the names of McAllen residents Antonio, Caleb and Joshua Gámez-Cuéllar — the sons of Gámez Martínez and Emma Guadalupe Cuéllar López — are displayed.…