SpongeBob's Atlantis SquarePantis

The series follows the adventures of the title character in the underwater city of Bikini Bottom. British musician and actor David Bowie guest starred as the voice of Lord Royal Highness. After hearing the story of Atlantis, the only thing SpongeBob and Patrick want to see is the "World's Oldest Bubble." Squidward then proceeds to reconnect the two halves of the medallion, opening the "path to Atlantis", which is a bus that runs on "song fuel". At Atlantis, they meet the Atlantean Emperor, Lord Royal Highness who shows them a grand tour of the fortress. Finally, SpongeBob and Patrick get to see the world's oldest living bubble. Angered, Lord Royal Highness summons the Atlantean Royal Guards to attack, but the gang manage to escape.