Royal Caribbean’s Star of the Seas will have something no cruise line has ever had before when it debuts out of Port Canaveral in 2025: A time machine.

It’s a DeLorean, and needs 1.21 gigawatts of electricity generated by a nuclear reaction to power the flux capacitor, which makes time travel possible. That’s the word or Emmett “Doc” Brown, of course, one of the characters who will be spouting science and singing songs alongside Marty McFly, parents George and Lorraine, as well as foil Biff Tannen as part of the cruise line’s production of “Back to the Future: The Musical.”

The cruise line revealed Monday that the play will be the marquee offering on board what will be the largest cruise ship in the world, a sister ship to Icon of the Seas that debuted out of Miami earlier this year.

“Blast to the past and introduce the entire family to Marty McFly’s high-flying adventure, as ‘Back to the Future: The Musical’ travels straight from Broadway to Star of the Seas.” the line promoted on its website. “From cult-classic movie to instant-hit musical, this Olivier Award winner is making waves on land — and now you can experience it at sea.”

The musical had its debut in debut in England in 2020 and only made it onto Broadway in 2023 with a touring show the began this year.

Royal Caribbean adds the title to an array of Broadway hits it has brought onto its ships including “Wizard of Oz,” “Mamma Mia,” “Cats,” Grease,” “We Will Rock You,” “Hairspray” and “Saturday Night Fever.”

“Back to the Future: The Musical” features original music alongside the hits featured in the original 1985 film of the popular trilogy that starred Michael J. Fox and Christopher Lloyd. That means music from the 1980s and back to the 1950s. So it ranges from songs like “Back in Time” by Huey Lewis and The News back to “Johnny B. Goode” by Chuck Berry.

The line also announced the title for its signature show coming to its AquaTheater: The H2Whoa Show, which will combine aerobatics, dancing, diving and more. The version on Icon featured four robotic arms to help build the set and participate in the various performances set to high-energy music.

Royal Caribbean also promised “High Jumps & High Tech” for a stunt-filled ice skating show in its Absolute Zero venue, in which “all-star athletes combine grace and speed to perform daring flips, jumps, and spins on ice. And powerful projectors create an immersive backdrop to transform the rink into anywhere — and any time.”

The main stage, AquaTheater and ice rink are the three main venues on both Icon and Oasis-class ships, although Icon class like Star of the Seas have moved the AquaTheater up into the AquaDome neighborhood, a massive metal-and-glass enclosure atop the ship.

Star of the Seas was recently floated out at the Meyer Turku shipyard in Turku, Finland, as work continues on the interior ahead of sea trials and eventual transatlantic crossing ahead of an August 2025 debut from its Orlando-area homeport.

It will be slightly larger than the current record holder for world’s largest cruise ship, Icon of the Seas, which came in a 248,663 gross tons, about 15,000 more than the six existing Oasis-class vessels — five of which had previously held the title for world’s largest cruise ship.

Star of the Seas will have a 5,610-passenger capacity based on double occupancy, but will approach 8,000 passengers plus 2,350 crew at full capacity.

The Icon class also features more than 40 food and beverage options with Star of the Seas mostly mirroring the venues found on Icon of the Seas, except Icon’s Empire Supper Club themed to 1920s-era New York will become the Lincoln Park Supper Club themed to 1930s-era Chicago.

The ship’s maiden voyage is Aug. 31, 2025 out of Port Canaveral with seven-night alternating Eastern and Western Caribbean itineraries on tap. When it arrives, it will sail alongside Royal’s newest ship this year, Utopia of the Seas, which debuted this summer doing three- and four-night Bahamas itineraries.