Blusas
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Blusas are individuals in the autonomous Basque region in Spain who dress in the traditional clothes of the region and attend events in Vitoria-Gasteiz (Basque Country) such as the Virgen Blanca Festivities. The blusas assemble in groups called cuadrillas, and their main role is to provide entertainment at these events.

Etymology
Etymologically, blusas comes from the Basque language and refers to the typical long shirts worn at the festivities.[1]
History
Festival routine
Blusas are the main cheerleaders of festivals and thus their routine is connected to it. During the corrida, they gather and parade near the bullring without entering.[1]