Royal Caribbean's massive Harmony of the Seas vessel will soon be usurped as the world's largest cruise ship.
The company announced it has ordered the biggest ship in the world yet again, working with French Shipbuilders STX France.
Its fifth "Oasis-class" ship will be ready for delivery in 2021.
Royal Caribbean also announced it had made an order for two ships for its luxury brand Celebrity Cruises, which will be classed under its new "Edge-class" - billed as a step up from its Solstice-class.
"The response to the arrival of Oasis-class ship, Harmony of the Seas, is staggering, eliciting excitement from eager cruisers from markets all over the world," said Richard D. Fain, Chairman and CEO, Royal Caribbean Cruises Ltd.