© Dsquared

Marlene Dietrich started the trend, while Katharine Hepburn pioneered the unbelievably sexy masculine look with loose high-waisted trousers, a shirt and heels. 

We're seeing a lot of their retro glam in this summer's collections, such as Dsquared's high-waisted trousers with masculine braces. 

But you can also put a romantic twist on this look by matching high waists with pretty blouses. 

Photo: Dsquared Spring/Summer 2007 collection