Rachel Zegler serenades the crowd for free in a new London production of ‘Evita’

LONDON (AP) — In a new production of “Evita,” one of the biggest moments isn’t on the stage.

Midway through the show, Rachel Zegler, playing Argentine first lady Eva Perón, emerges onto an exterior balcony at the London Palladium and sings “Don’t Cry for Me, Argentina,” to whoever is passing by below. The performance is streamed back on video to the audience inside.

News has spread quickly since the show began previews this week, and hundreds have gathered outside the historic venue...