Which Broadway show pioneered the strategy of releasing a 'concept album' BEFORE the stage production to build audience anticipation and recognition?

Test your knowledge about innovative marketing strategies that transformed Broadway shows from theatrical productions into cultural phenomena. The performing arts industry has seen revolutionary marketing approaches that helped certain productions break out of traditional theater audiences to become mainstream sensations. Can you identify which groundbreaking campaign truly changed the game?

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Jesus Christ Superstar (1971)
Cats (1982)
Phantom of the Opera (1988)
Les Misérables (1987)