Her uncanny way of making a loose, layered blonde hairstyle look effortlessy sexy has caught the attention of female - and, of course, male - admirers for the last two decades.
But every hair icon has an off day... look back at her Jen's best and worst hairstyle here:
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- 1996<p> Brown and out: Jennifer was reasonably dark-haired before she hit the (blonde) bottle.</p>
- July 1996<p> Aww. Jen was worked the 'goofball' look on the set of Picture Perfect in NY, with plaits and a back-to-front baseball cap.</p>
- April 1997<p> The hairstyle that sparked a million copycats: The Rachel. Enough said.</p>
- December 1997<p> It looked like Jennifer was attending a Barbara Streisand lookalike competition at the premiere of <em>Good Will Hunting</em> in LA.</p>
- April 1998<p> We all have bad hair days, and this mini ponytail mish mash at<em> The Object of my Affection</em> premiere in NY was undoubtedly one of Jen's.</p>
- April 1998<p> A toned-looking Jen worked spiral curls at the LA premiere for <em>The Object of my Affection</em>.</p>
- November 1998<p> Matted hair isn't really a good look on anyone… Not even Jennifer Aniston could pull it off at the NY premiere of<em> Meet Joe Black</em>.</p>
- March 1999<p> Jennifer Aniston obviously turned to a pair of ghds for her moment on the red carpet at the 5th Annual Screen Actors Guild Awards in LA.</p>
- September 1999<p> Jennifer did the twist for a dreads-style look at the 51st Emmy Awards in LA.</p>
- February 2000<p> That's what we call a pout! Anyway, back to the hair… Jen worked her super-long middle-parted look at the Vanity Fair Oscars Party back in 2000.</p>
- March 2000<p> Looks like Jen was actually a pioneer of the dip-dye trend. The actress showed off extra-long two-tone curls at the Screen Actors Guild Awards.</p>
- September 2000<p> Just-married Jen arrived at the 52nd Annual Primetime Emmy Awards in Los Angeles with her new hubby Brad working a very loose ponytail, with layers framing her face.</p>
- January 2001<p> Jennifer 'bobbed' on to the red carpet at the 27th Annual People's Choice Awards in Pasadena in a rare move away from her long locks.</p>
- September 2001<p> Lighter life: Jennifer showed off bright blonde highlights at the <em>Rock Star</em> premiere in LA.<br /> </p>
- May 2002<p> Jen showed off a bit of bounce at the 75th Anniversary celebration of NBC in New York.</p>
- September 2002<p> It was a touch of hobo-chic for Jennifer Aniston at the 54th annual Emmy Awards in Los Angeles, when she picked up an award for Best Actress in a Comedy Series for<em> Friends</em>.</p>
- January 2003<p> For her golden moment at the annual Golden Globe awards 2003, Jen actually chose a chocolate-brown ponytail.</p>
- January 2003<p> For her golden moment at the annual Golden Globe awards 2003, Jen actually chose a chocolate-brown ponytail.</p>
- September 2003<p> At the 55th annual Emmy Awards, Jennifer was radiant with a sun-kissed golden mane, which seemed to enhance her piercing blue peepers.</p>
- January 2004<p> A kink and a curl put a kick in Jennifer Aniston's hair at the Golden Globes.</p>
- February 2004<p> A cute side bun matched Jennifer's prom-style look at the <em>Along Came Polly</em> premiere in London. </p>
- May 2004<p> Brad and Jen were the ultimate All-American golden couple at the 57th Cannes Film Festival, where the actress worked her signature long-and-layered-at-the-front look.</p>
- March 2005<p> Making waves: Jennifer Aniston was flirty and feminine at Showest in Las Vegas.</p>
- October 2006<p> We love the relaxed LA vibe Jen gave off at the Glamour Reel Moments benefiting FilmAid International bash in LA. The apricot cheeks and tanned skin were the perfect complement to the groomed-tousled hairdo.</p>
- January 2007<p> Jennifer has mastered the art of the 'polished bedhead', and rocked the look at the 33rd Annual People's Choice Awards.</p>
- December 2007<p> Easy does it: Jennifer Aniston kept her hairstyle simple and straight at the 18th Annual GLAAD Media Awards in LA.</p>
- December 2008<p> If we were being critical, we could make a little pun here about Jen looking like a dog's dinner at the <em>Marley And Me</em> premiere in LA. But we won't. And we kinda like her mussed-up mane.</p>
- February 2009<p> The tousled honey-blonde ponytail worked wonders at the world premiere of<em> He's Just Not That Into You</em>. We love.</p>
- February 2009<p> Jennifer's front plait at the Vanity Fair Oscar Party in 2009 has become almost as famous at the Rachel. Almost.</p>
- January 2010<p> A little - or a lot - of texturising lotion created a cool just-got-up-in-a-good-way style at the 67th Annual Golden Globe Awards.</p>
- June 2011<p> Jennifer wasn't short of a bob or two at the LA premiere of <em>Horrible Bosses</em>.</p>
- October 2011<p> Wow! Jennifer set jaws dropping at the 18th Annual <em>Elle</em> Women in Hollywood celebration in LA, with everything from the glittery plunging dress to the gorgeous blonde waves.</p>
- 1993<p> It was all backcombing and bouffants back when Jen first started out in TV on <em>The Edge</em>.</p>
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