The rules were altered in 1987 and again in 2005 so that the new intake are not elected solely by the existing year and a committee of masters. Members of Pop are entitled to wear checked spongebag trousers and a waistcoat of their own design, which means football shirts, team crests, national flags, fluorescent colours, Hermes scarves and even sequins are not uncommon. As one former member of Pop put it "your mother's old evening gown, or a bit of old curtain"
Historically, only members of Pop were entitled to furl their umbrellas or sit on the wall on the Long Walk, in front of the main building. However, this tradition has died out. They perform roles at many of the routine events of the school year, including school plays, parents' evenings and other official events.