Blazers smarten up casual day outfits, give structure to flowing dresses and offer a sophisticated cover up for cold evenings out. In short, if you don't have one, you need one!

So many celebs are looking good in their blazers right now such as (from L-R) Rashida Jones, Kate Moss, Liv Tyler and Keri Russell.

Quincy Jones' actress daughter Rashida, wore her blazer cropped and pinstriped for the 7 For All Mankind Store Opening last week. The rest of her outfit was very equestrian chic with a white, ruffled blouse, skinny black jeans and black knee high boots. Rashida broke up the dark simple black and white outfit with a bright yellow clutch.

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Super model Kate Moss wears blazers a lot, but the black, tuxedo style one she wore to the Seventh on Sale Dinner Gala recently, was one of the most posh and sophisticated of all. She wore it over a beautiful, slinky, black and silver gown. Kate's new fringe and mid-length cut also gives her a cool vintage vibe that matches the outfit really well.

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Blazers don't only look good in black though as the stunning Liv Tyler proved with her clean cut, white blazer, also worn to the Seventh on Sale Dinner Gala. Liv wore hers over a simple, straight white dress in the hard to wear but very hip, mid-calf length. This isn't an outfit that would look good on many but with Liv's beautiful face, model height and the help of her towering black heels, she looks great.

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Finally we have actress and mother Keri Russell wearing a more casual version of the blazer whilst feeding the Paparazzi with pastries outside Taste Restaurant last week. Wow, what a nice woman!! Her long length blazer looked very smart over her short, fitted white dress.

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So how many of you want a blazer now?! Lol.