Sarah Harding Vs Nicola Roberts: Hair Icons

Girls Aloud goddesses Sarah Harding and Nicola Roberts always keep us on our toes with their hair make-overs. We've found the girls' best looks, but who will be crowned the ultimate hair icon?
Getty ImagesSarah Harding and Nicola Roberts are both queens of hair-raising style. It's a Girls Aloud beauty battle - but who's the ultimate hair icon?
Nicola Roberts looks ultra-glam with her golden blonde curled ends and volumised roots.
PA PhotosWe love this slicked-back style from Sarah. We applaud the versatility of Miss Harding - this vampy look gets the thumbs-up from us.

Nicola Roberts has been experimenting with her hair hue for years, recently settling on this faded orange. We love the colour, but the style is a little messy.
WennSarah shocked us all when she dyed her famously blonde hair a deep brunette shade. Stepping out with a look-at-me curly quiff, we loved the bold move.

This vibrant orange shade is a great colour for Nicola 's delicate complexion. We're awarding her extra points for the swept-over grown-out fringe.
Very rock 'n' roll.
PA PhotosFull marks go to Sarah Harding for this messy braided style. Perfect for taking the edge off full eye make-up and a strong lip on the red carpet.
Rex FeaturesNicola plays things cool and casual with this faded colour and side-swept style. It looks like Nicola's frazzled locks are in need of a slick of serum here.
Rex FeaturesWe all need a day off from being well-groomed once in a while, but Sarah 's scraped-back ponytail is just plain messy.
Come on Sarah, you can do better than this!
PA PhotosHere's our Nicola at her most glamorous. Those full-bodied curls and deep reddy tint are pop-perfection.
Rex FeaturesWith this Hollywood hair and ultra-glam eyes and lippie, Sarah is every inch the pop diva.
The lady is a vamp.
PAThis asymmetric bob was one of our favourite looks on Nicola . The stand-out colour and edgy cut helped her kiss goodbye to her sweet and innocent image.
Big PicturesProving that her look is oh-so-versatile, Sarah rocks a half-up, wide swept-over fringe. This punk styling is a winner on the singer.
Rex FeaturesWe were a little undecided when we spotted Nicola stepping out with some candy-cotton pink streaks through her hair.
Just when we were about to veto the look, Nicola quickly ditched the streaks. Phew!
Rex FeaturesHere at GLAMOUR.COM we do love a celeb who isn't afraid to take a risk. Sarah really pulls off this piled-up curly style, perfect for a night on the town.
PA PhotosAt London Fashion Week 2009, Nicola Roberts injected some va-va-volume into her bob. A touch Cilla Black, isn't it?
PA PhotosAnother day, another rock 'n' roll style for punk queen Sarah Harding. A slicked back quiff is the perfect look to team with that berry lippie.
PA PhotosThis choppy bob signalled the start of Nicola 's love affair with fashion.
Gone were the long, dishevelled locks, to be replaced with a short sharp cut and a string of front row appearances at Fashion Week.
PA PhotosMove over Spock, there's a new Vulcan in town. An experimental look for Sarah saw the star cropping her platinum blonde hair into this short sharp cut. Spacey.
PA PhotosThis hair snap from Nicola 's early days shows just how far she's come. This blonde high ponytail and plait combination wouldn't have been out of place in the 90s (a decade earlier).
PA PhotosSarah wasn't always such a hair icon, as you can tell from this scraped-back high ponytail. Although we're a little more concerned about the amount of bronzer on those cheeks...
PA PhotosNicola 's early flirtations with glamour were all about spiral curls and oodles of volume. While we wouldn't want to see Nicola return to this look, there's something charming about the way her hair is swept from her face, don't you think?
PA PhotosDo you remember when Sarah 's hair like this? Nope, thankfully neither do we. Let's erase it from our memories again quickly and move on.
PA PhotosNicola once dabbled with life as a brunette. We've got nothing against this rich chocolate hue, but the red is infinitely better, no?
PA PhotosWhen she burst onto our screens during Pop Stars: The Rivals, Sarah was a bit of a tomboy. Hasn't she come a long way since this two-tone dye and spiky fringe?
PA PhotosOur first memories of Nicola are of this angelic style. Since then she's embraced her pale skin and gorgeous red hair and become a true hair hero.
So who's our ultimate hair icon from the pair? We'll always love Nicola's vibrant orange hue and laid-back styling, but for thinking outside the box, our vote goes to Sarah Harding. Long may she reign.