Xavier Cugat was a Latin bandleader from Cuba who popularized Latin dance music in the US during the 40's and 50's.
Although he was trained as a classical violinist, Xavier preferred entertaining in the clubs and big hotels. Cugat's records and films made him a household word as Latin music took hold.
He was responsible for calling the Cha Cha....... the Cha Cha Cha, because, he said, the three chas made the sound of the maracas. This title stuck and even in the competition world, you will find either Cha Cha or Cha Cha Cha.
The video below shows you Xaviar's band