The Spirit of Troy, also known as the Trojan Marching Band (TMB), self-described as "The Greatest Marching Band in the History of the Universe," is the marching band of the University of Southern California, representing USC at various functions. A contingent of the band has performed at every USC football game, home and away, since 1987. This streak of 259 consecutive games (through 2007 season) is unrivaled by any other college or university band. Additionally, the Spirit of Troy has traveled every other year since 1973 to South Bend, Indiana to support the team in its annual rivalry against Notre Dame. The band gives a concert after every football game. It also makes an international trip at least every other year. In addition, the Spirit of Troy has performed with numerous celebrities including John Williams, Michael Jackson, Diana Ross, Doc Severinsen, George Clinton, Fleetwood Mac, The Three Tenors and The Offspring. blank">The History of the Spirit of Troy, USC Trojan Marching Band, USC.edu.

The _Trojan Shrine, the symbol of USC and popularly known as "Tommy Trojan", was originally supposed to be named "The Spirit of Troy". blank">The History of the Spirit of Troy, USC Trojan Marching Band, USC.edu.

The band has performed for seven U.S. presidents, played at the _Summer Olympics and on the Academy Awards and Grammy Awards telecasts. Lynne Heffley, In 'Tchaikovsky Spectacular,' L.A. Phil is with the band, latimes.com, August 27, 2007