Sex sells. And it's become a ubiquitous feature of mainstream life, culture and entertainment in the last 50 years. But what is - and isn't - sexy, and who decides?

Jacques Peretti takes a critical look at five Titans of popular entertainment that have promoted and exploited sex, and influenced our view of what's sexy: the Carry On films, Baywatch, Sex and the City, The X-Factor and ABBA.