By the 1890s, Tilley was England's highest earning woman. She was also a star in the vaudeville circuit in the United States, touring a total of six times. She married Walter de Frece, a theatre impresario who became her new manager and songwriter. At a Royal Command Performance in 1912, she scandalised Queen Mary because she was wearing trousers. During the First World War she was known as "England’s greatest recruiting sergeant" since she sang patriotic songs dressed in khaki fatigues like a soldier and promoted enlistment drives.