Brown wowed audience members after stepping into the role of Eva Perón midway through a performance of "Evita" in London's West End on July 24.

The actress had to leave the production due to illness and her starring role was taken over by understudy Bella Brown.

Zegler, 24, appeared back onstage in London just one night after her mid-show exit. The Golden Globe-winning actress is currently making her London stage debut as Eva Perón in director Jamie Lloyd's stripped-back revival of the Andrew Lloyd Webber classic rock opera.