Music halls were popular entertainment venues in the 19th and early 20th centuries, primarily in Britain. They featured a variety of performances, including singing, dancing, comedy, and theatrical acts. These venues provided a space for both professional entertainers and amateur performers, making them accessible to a wide audience. The format of music hall shows often included a series of short acts, allowing for a diverse range of entertainment in a single evening. Famous performers, such as Marie Lloyd and George Formby, gained popularity through music halls, which played a significant role in the development of modern theatre and variety shows.