There are four bands that have gone by the name "Crusaders."
First was the 1970's Jazz band.
Second is a European Oi band.
The Third is a Australian Garage surf band.
Fourth was a Christian garage band active 1966-'67. The Crusaders are an American music group popular in the early 1970s for their amalgamated jazz, pop and soul sound. From 1961 to present more than forty albums have been credited to the group (some live and compilations), 19 of which were recorded under the name "The Jazz Crusaders" (1961-1970).