What type of event is held in Santo Domingo every year and is given by Presidente, a brand of Pilsner beer?  
Barbarella (festival): Barbarella is an annual music festival held in Santo Domingo, Dominican Republic since 2011 by Presidente. Presidente (beer): Presidente is a brand of Pilsner beer that is owned and produced by Cervecería Nacional Dominicana (CND) at several breweries in the Dominican Republic.
an annual music festival