Keira Knightley(01 of71)
Open Image ModalLooking lovely with simple, wavy locks at the Chanel show in 2014. (credit:Getty Images)
Keira Knightley(02 of71)
Open Image ModalA chic updo with loose tendrils and a side part at the "Jack Ryan: Shadow Recruit" premiere in January, 2014. (credit:AP)
Keira Knightley(03 of71)
Open Image ModalTaking a page out of Kate Middleton's book, Keira sports extra curly waves at the "Laggies" premiere in Jan. 2014. (credit:Getty Images)
Keira Knightley(04 of71)
Open Image ModalA chic messy updo that looks like it takes all of 10 seconds to do, at the "Jack Ryan: Shadow Recruit in Jan. 2014. (credit:Getty Images)
Keira Knightley(05 of71)
Open Image ModalCarefree hair, don't care! Keira looks beautiful with a no muss no fuss shoulder-length do at the SeriousFun London Gala in Dec. 2013. (credit:Getty Images)
Keira Knightley(06 of71)
Open Image ModalKeira is a pro at the messy updo. Here at the Toronto Film Festival in Sept. 2013, she perfects a carefree low-bun with side pieces. (credit:Getty Images)
Keira Knightley(07 of71)
Open Image ModalKeira looks stunning with a seashell low bun with twisted hair at the "Anna Karenina" premiere in Nov. 2012. (credit:Getty Images)
Keira Knightley(08 of71)
Open Image ModalAnother simple low bun with side-swept bangs at the 2012 Toronto Film Festival. (credit:Getty Images)
Keira Knightley(09 of71)
Open Image ModalNo one can rock a floral headband with such grace like Keira. Here, at the "Seeking A Friend For The End Of The World" premiere in June 2012, the actress looks ethereal in a wavy updo with a red head piece. (credit:Getty Images)
Keira Knightley(10 of71)
Open Image ModalTo give her bob some volume, Keira added lots of waves to make it stand out at the National Board of Review Awards in Jan. 2012. (credit:Getty Images)
Keira Knightley(11 of71)
Open Image ModalWet hair on the red carpet can be hit or miss but Keira's wet updo is spot-on at the "A Dangerous Method" premiere in Jan. 2012. (credit:Getty Images)
Keira Knightley(12 of71)
Open Image ModalOne of our favourite hairstyles is Keira's lob (here in 2011), which suited her angular face to perfection. (credit:Getty Images)
Keira Knightley(13 of71)
Open Image ModalKeira tucks in her hair and adds beautiful flowers at the Venice Film Festival in 2011. (credit:Getty Images)
Keira Knightley(14 of71)
Open Image ModalKeira smooths out her lob into straight locks at the "A Dangerous Method" photocall at the Venice Film Festival in 2011. (credit:Getty Images)
Keira Knightley(15 of71)
Open Image ModalKeira's short bob looks super cute with messy waves at the Empire Awards in March, 2011. (credit:Getty Images)
Keira Knightley(16 of71)
Open Image ModalKeira goes super short with longer pieces at the front, and short pieces at the back at the Rome Film Festival in Oct. 2010. (credit:Getty Images)
Keira Knightley(17 of71)
Open Image ModalKeira adds some waves to ruffled up her otherwise sleek hair at the "Never Let Me Go" afterparty in Oct. 201. (credit:Getty Images)
Keira Knightley(18 of71)
Open Image ModalSleek and chic at the Chanel Spring 2011 show in Paris, Oct. 2010. (credit:Getty Images)
Keira Knightley(19 of71)
Open Image ModalHeavy fringe and lots of curls is a nice change from Keira's shorter hair at the Berlin Film Festival in 2009. (credit:Getty Images)
Keira Knightley(20 of71)
Open Image ModalSleek and chic at "The Duchess" after party in Sept. 2008. (credit:Getty Images)
Keira Knightley(21 of71)
Open Image ModalA half updo with lots of wisps of hair at "The Edge of Love" photocall, June, 2008. (credit:Getty Images)
Keira Knightley(22 of71)
Open Image ModalStraight bangs with a messy low bun? Hell, yes! Keira manages to make a polarizing 'do super chic at the "Atonement" premiere in Dec., 2007. (credit:Getty Images)
Keira Knightley(23 of71)
Open Image ModalIt's a wig but Keira's "The Duchess" hair was super adorable. (credit:Getty Images)
Keira Knightley(24 of71)
Open Image ModalRocking sexy waves and a middle part at the Toronto Film Festival in 2007. (credit:Getty Images)
Keira Knightley(25 of71)
Open Image ModalAnother beautiful headband paired with just-tumbled-out-of-bed hair at the "Atonement" premiere, Sept., 2007. (credit:Getty Images)
Keira Knightley(26 of71)
Open Image ModalKeira sports beachy waves at the Venice Film Festival in 2007. (credit:Getty Images)
Keira Knightley(27 of71)
Open Image ModalBlond highlights are a nice contrast to Keira's English Rose complexion at the "Pirates of the Caribbean 2" premiere in July, 2006. (credit:Getty Images)
Keira Knightley(28 of71)
Open Image ModalKeira grows out her pixie into a shaggy cute 'do at the "Pride & Prejudice" premiere in July, 2005. (credit:Getty Images)
Keira Knightley(29 of71)
Open Image ModalKeira's pixie cut is probably one of our favourite looks ever on the actress. She was way ahead of the curve back in 2005. (credit:Getty Images)
NEXT: Keira Knightley's Style Evolution(30 of71)
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