Stars With Hair Extention Know-How Including Kelly Osbourne, Katy Perry And Jessie J

Kelly Osbourne has added some major length with a mass of purple hair extensions. She's been wearing her hair longer for the last weeks, and was recently spotted supporting a high, tight and rather heavy-looking pony tail this week in Mexico. Miss Osbourne is known for changing and re-inventing her beauty (and style) regime, and while she's been sporting purple locks for some time, her styling is anything but consistent.

She's topped the top-knot during London Fashion Week, worn it short and cropped, and went back to the 90's with a Gwen Stefani 'No Doubt' 'do while interviewing Tiffani Thieseen, aka Kelly Slater from Saved By The Bell fame. We love Kelly's daring looks, and are inspired by her ability to rock those extensions so effortlessly. But Kelly isn't the only celeb to take on extensions, as Hollywood starlets and other celebs are constantly changing up their 'do's in front of the cameras. 

The hair chameleon Katy Perry is as comfortable adding length as she is chopping it all off. She's recently worn her hair in big, soft dark waves, complimenting the cooling weather (and her beau, John Mayer). British singing sensation Jessie J has also become fond of hair extensions, as she's ditched her signature hard, black bob for softer, caramel waves. And Kelly Rowland knows how to update her existing extensions by alternating between sleek and straight with bouncy, tight curls.

Who do you think rocks the extensions best? Take a look through our gallery of our top gals with extension know-how.