London: The Modern Babylon is legendary director Julien Temple’s epic time-traveling voyage to the heart of his hometown.

Music has many masters. Some play instruments. Others computers. Some balance audio levels. Others balance minds. But they all play a critical part in making the artform sing.

Ariana Grande takes the stage in London for her Sweetener World Tour and shares a behind-the-scenes look at her life in rehearsal and on the road.