George Le Brunn wrote "Oh! Mr Porter" which included repertoires of what english music hall singer affectionately called "Queen of the Music Hall"?
Marie Lloyd: Matilda Alice Victoria Wood (12 February 1870 – 7 October 1922), professionally known as Marie Lloyd ; was an English music hall singer, comedian and musical theatre actress. Marie Lloyd:  She received both criticism and praise for her use of innuendo and double entendre during her performances, but enjoyed a long and prosperous career, during which she was affectionately called the "Queen of the Music Hall".
i don't know