The Brazilian national anthem is said to be a mashup of several compositions of the time, including the French anthem: you can sing "Allons enfants de la patrie

The Brazilian national anthem is said to be a mashup of several compositions of the time, including the French anthem: you can sing "Allons enfants de la patrie!" in place of "Ouviram do Ipiranga as margens plácidas" There are also several bars ripped off from Paganini.