Rooftop theatres were for all-female troupes since the time of Lee Suet Fong (李雪芳) who formed the all-female troupe (「群芳艷影」) which she left when married in 1923. Lee basically set a bar for all female leads that only Fong Yim Fun had come close in a century. (Fong, a female lead since 16, performed with Lee at some point, was inspired and created her own vocal style from just sharing the stage.) Since the first top four all-female troupes, female leads became less noteworthy as the actresses in male lead roles. Male and female performers were not often in same troupe until after Japan took Guangdong. Reputation of all-female troupe was not as good as that of all-male troupe. Yam mentioned that male leads were called sissy (sing like a girl and walk like a girl) in the street while the jingles below reflects the sentiments about those troupes.