Giant Sand is an American rock band, based in Tucson, Arizona, USA. The name is shortened from the original Giant Sandworms, a reference to the creatures in the Dune books. Overseen by singer-songwriter Howe Gelb, its membership has shifted over the years—at times with each album. For a long while the band's rhythm section consisted of John Convertino and Joey Burns who left the band when their side project, Calexico, grew more widely known than Giant Sand and, as Gelb characterized it in 2004, Calexico "began to work against Giant Sand and eat away at what the band was".