The government in Rio de Janeiro commissioned an official funk carioca song for the Olympics, because the style is so popular in the city. But funk musicians in Rio say city authorities have been cracking down on them for years, raiding their parties and destroying their equipment.The government in Rio de Janeiro commissioned an official funk carioca song for the Olympics, because the style is so popular in the city. But funk musicians in Rio say city authorities have been cracking down on them for years, raiding their parties and destroying their equipment.