Since its debut four decades ago, Claude-Michel Schnberg and Alain Boublil's musical adaptation of Victor Hugo's epic novel has set the gold standard for musical theatre. An epic score, passionate story, and phenomenal scale are part of the magic, but it's truly the wonder of seeing a live performance that does it the most justice. Seen by an audience that numbers over 70 million, it's safe to say that Les Miserables is the world's most popular musical - and then some.