Carnival King Momo, Kaio Mackenzie, right, and Queen Thuane de Oliveira, present the keys of the city at a ceremony that officially kicks off Carnival in Rio de Janeiro, Brazil, Friday, Feb. 28, 2025. (AP Photo/Silvia Izquierdo)
RIO DE JANEIRO (AP) — Rio de Janeiro's mayor handed over the key to the city to its Carnival monarch on Friday, opening King Momo's five-day reign over the festivities.