Before revision: Teenybopper became widely used again in the late 1960s and early 1970s, following an increase in the marketing of pop music, teen idols and fashions aimed specifically at younger girls, generally 12 –15 years old.
After revision: Teenybopper became widely used again in the late 1960s and early 1970s, following an increase in the marketing of pop music, teen idols and fashions aimed specifically at younger girls, generally 10 –15 years old.