Nicole Richie can't stop buying jackets.

The House of Harlow designer is obsessed with well tailored blazers and coats but admitted her top tip for dressing well is to buy accessories.

She said: "I would always choose accessories because they can really change up an outfit. You can wear jeans and a t-shirt and throw on a different pair of shoes and it really changes the entire outfit. And when it comes to dressing tips, the boho-chic designer is all about a great blazer. I love to buy jackets. I love to buy coats. I bought a great Helmut Lang black blazer and I wore it, you know, I wore it every day."

Nicole is currently starring as a mentor on 'Fashion Star' with Jessica Simpson and John Barbados but says she tries to help the featured designers without imposing her own taste on them.

She explained to Fab Flash: "We are really leaving our personal opinions to ourselves. It's more about encouraging them to go with their gut and know the business and really just be fearless in this competition.

"Well, I think what makes the show so original is that as America is watching the clothes go down the runway, they can order those clothes immediately online that night or go in the stores the next day and buy it the very next day. So we're talking about immediate fashion, accessible fashion at an accessible price."