It's almost impossible to find the always stylish Olivia Palermo with a hair out of place, so you can imagine my surprise when I came across this picture of "The Hills" star wearing this outcast of an oversize leather bomber jacket as it is (I'm assuming it's her boyfriend's since she was out with him that night), let alone layered over a leather dress.

While I'll often add an edgy touch to a look with a faux leather jacket, handbag or accessories, I tend to believe leather looks best when layered over more feminine fabrics and broken up in between.

Do you have some leather rules to live by? Share them in the comment section below!

Photos (left to right): Richie Buxo/Splash News