Tilley was known for her painstaking attention to detail in preparing for her roles: she wore her hair tightly plaited and hidden under a wig; she took to wearing men's underwear so her appearance looked believable, since contemporary women's underclothing would have distorted her shape. Her performances were always family-friendly, unlike other acts. She had found her niche, performing as a male impersonator and working-class men adored her mockery of the upper classes. From the 1870s onwards, women also went to music halls and they revelled in Tilley's independence. By 1912, music hall entertainments had become so famous that a Royal Command Performance was organised. Tilley sang a favourite song, "The Piccadilly Johnny with the Little Glass Eye" wearing trousers as part of her act. Queen Mary was scandalised to see a woman's legs and hid her face behind a programme.