Gilbert and Sullivan were a human musical composition team in the late 19th century. Playwright/lyricist William S. Gilbert and composer Arthur S. Sullivan gained fame for their satirical take on British society during the Victorian era.
Captain Hikaru Sulu was fond of Gilbert and Sullivan's The Mikado, and hosted several performances while commanding the USS Excelsior. (VOY - The Brave and the Bold, Book Two novella: The Third Artifact) USS Enterprise-E officer Data had also performed The Mikado, and Deanna Troi used portions of his performance in 2379 to try to break captured Tezwan General Gyero Minza for information. (TNG novel: A Time to Heal)
In 2375, Lieutenant Commander Data was to play a role in HMS Pinafore. When he malfunctioned on the Ba'ku planet, Jean-Luc Picard and Worf sang a song from that operetta in order to distract him. (Worf initially assumed Gilbert and Sullivan were members of the Enterprise crew.) (TNG movie: Star Trek: Insurrection)