Who are the Robstown Band boosters? A group of parents have come together to ensure students at a Coastal Bend high school are marching their way to victory. and last updated 2020-12-10 06:49:28-05 A group of parents have come together to ensure students at a Coastal Bend high school are marching their way to victory. The Robstown High School marching band has 63 participants. Some say marching band is a performing art. Others call it a sport. Regardless of what you consider it, it takes a lot to keep things running smoothly and that's where the band's boosters come in.