A man wears a carnival mask outside a store in central Rio de Janeiro, Brazil, Jan. 18, 2013. Carnival-related products sell like hot cakes in Brazil, three weeks away from the annual Rio de Janeiro Carnival. (Xinhua/Weng Xinyang)

A woman tries on a carnival mask in a store in central Rio de Janeiro, Brazil, Jan. 18, 2013. Carnival-related products sell like hot cakes in Brazil, three weeks away from the annual Rio de Janeiro Carnival. (Xinhua/Weng Xinyang)

A girl tries on a carnival hat in a store in central Rio de Janeiro, Brazil, Jan. 18, 2013. Carnival-related products sell like hot cakes in Brazil, three weeks away from the annual Rio de Janeiro Carnival. (Xinhua/Weng Xinyang)

A couple try on carnival accessories in a store in central Rio de Janeiro, Brazil, Jan. 18, 2013. Carnival-related products sell like hot cakes in Brazil, three weeks away from the annual Rio de Janeiro Carnival. (Xinhua/Weng Xinyang)