The Purdue Big Bass Drum is a percussion instrument played by the All-American Marching Band (AAMB) of Purdue University. At a height of over ten feet (3 m) when the carriage is included, it is branded by Purdue as the "World's Largest Drum". Since its inception, it has become a lasting symbol of the marching band as well as the university. The drum can be seen at all Purdue home football games as well as parades, alumni rallies, the Indianapolis 500 Race, and many other special events.