Several hundred revelers of both species turned out for the 11th edition of the Blocao, where disguised dogs are seen partying to traditional Carnival songs with their owners.

Pet owners in flip flops and cutoff shorts and T-shirts paraded down Copacabana beach in Rio de Janeiro, with packs of pooches sporting smart neckties, pink tutus, jester hats, dashing tuxes fitted with satin capes, and a myriad of other get-ups for four-legged partiers. —Photos by Agencies/text by AP