Who Wants to Be a Millionaire began as a British television quiz show in 1998, in which contestants answered increasingly difficult multiple-choice questions to win a top prize of one million pounds. The format was soon adapted around the world, and its tense opening music became closely linked with the moment a contestant took the hot seat. Online, the intro is now reused far beyond the show itself, especially in quiz videos, parodies and reaction edits where creators want an instant signal of high stakes and a big reveal.