Carnival’s “chief fun officer” Shaquille O’Neal attended the event and cut the ribbon of his first Big Chicken restaurant at sea that debuted on Mardi Gras when it began operations on 31 July.

Miss Universe (Dominican Republic) Kimberly Jimenez, who served as the ship’s godmother and officially named the vessel, was joined by Miss Universe Andrea Meza and Miss USA Asya Branch, who sang the national anthem.

Christine Duffy, president of Carnival Cruise Line, said the ceremony "signifies excitement and optimism" as the line prepares to bring its entire fleet back into service by spring 2022.

"This ship has been amazing guests during her pre-inaugural season, and the celebration today with our chief fun officer Shaq, our godmother Kimberly, and so many special guests, was extremely gratifying and emotional," she added.

Jimenez blessed the ship in both English and Spanish and activated the traditional champagne bottle break, officially naming the vessel.

Mardi Gras is said to be the first cruise ship in the Americas to be powered by Liquefied Natural Gas (LNG) and the first to feature a roller coaster.

The 180,000-ton vessel offers six themed zones with a variety of food, beverage and entertainment options.

Mardi Gras sails weekly from Port Canaveral on alternating Eastern and Western Caribbean cruises.