Composed by Ennio Morricone for Sergio Leone's 1966 western The Good, the Bad and the Ugly, The Ecstasy of Gold plays as Tuco frantically searches a vast cemetery for the grave holding buried gold. The piece became one of Morricone's most famous themes and gained a second life when Metallica began using it as their concert intro in 1983. Its unmistakable build has since been sampled, covered and reused in trailers, adverts and online edits, where it instantly signals obsession, pursuit and a payoff worth chasing.