Like fashions and fads, the most desirable celebrity looks are constantly in flux. Each decade, as trends transform, the public picks a new famous figure to idolize. Marilyn Monroe's curves, Brooke Shields's legs, even Burt Reynolds's mustache – all of these celebs have had their moment in the sun, shaping the styles of their time.
In celebration of 2014's Hottest Bodies, PEOPLE takes a strut down memory lane and examines the most desirable star silhouettes from each decade. Starting in the 1920s, see which ones were the pioneers of hotness for their time period.