King Momos, King Momus, (Rei Momo in Portuguese or Rey Momo in Spanish) is considered the king of Carnivals in numerous Latin American festivities, mainly in Brazil and Colombia. His appearance signifies the beginning of the Carnival festivities. Each carnival has its own King Momo, who is often given the key to the city. Traditionally, a tall, fat man is chosen to fulfill the role because the original King Momo was of that physical stature