The Fightin' Texas Aggie Band is the official marching band of Texas A&M University. Composed of over 400 men and women from the school's Corps of Cadets, it is the largest military marching band in the world. The band's complex straight-line marching maneuvers are performed exclusively to traditional marches.

A marching band is a group of instrumental musicians who perform while marching, often for entertainment or competition. They are most popular in the United States, though not uncommon in other parts of the world. Instrumentation typically includes brass, woodwind, and percussion instruments. Most marching bands wear a uniform, often of a military style, that includes an associated organization's colors, name or symbol. Most high school marching bands, and some college marching bands, are accompanied by a color guard, a group of performers who add a visual interpretation to the music through the use of props, most often flags, rifles, and sabers.