Rihanna and Katy Perry at the Grammys 2012. Photo: Getty Images
Rihanna curled her new blonde do - a vast improvement on the shaggy, straight version from last week - and worked a rich, blackberry lip colour to complete her racy style.
Her gold nails also complemented best bud Katy's dazzling gown perfectly, but Perry had to go and ruin the colour co-ordinated theme with that crimped, blue crop. However, the singer's flawless complexion and candy pink pout more than made up for her controversial hairstyle. (We love her blue-tipped nails too).
How do you rate the duo's picture-perfect looks? Let us know in a comment and take a look below to see all the dresses from the Grammys 2012 red carpet.
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- Adele<p> Adele glammed things up in a sequin embellished, floor-sweeping gown by Giorgio Armani. This has to be one of the star's best red carpet looks yet.</p>
- Jessie J<p> The metallic trend from the Baftas continued over in LA, with Jessie J opting for this Julien Macdonald design.</p>
- Katy Perry<p> Perry matched her hair with her gown in Elie Saab couture.</p>
- Kelly Osbourne<p> Kelly sparkled in a flattering, figure-hugging design by Tony Ward.</p>
- Rihanna<p> We don't usually approve of Rihanna flashing her flesh, but we had to make an exception this time. The singer looked amazing in a backless Armani gown.</p>
- Alicia Keys<p> Keys kept things simple in an LBD by Alexandre Vauthier teamed with Louboutin heels.</p>
- Kelly Rowland<p> The <em>X Factor</em> judge looked gorgeous in this silver embellished, nude gown by Alberta Ferreti.</p>
- Taylor Swift<p> Swift stepped things up in the style stakes in a stunning gown by Zuhair Murad.</p>
- Nicki Minaj<p> Nicki Minaj took Gaga's place on the red carpet by dressing up in a nun's habit, albeit, a stylish one. It was by Versace. No word on who designed the Pope's outfit.</p>
- Amber Rose<p> The model brightened things up in a canary yellow Versace gown.</p>
- Fergie with her mum Terri Jackson<p> Fergie channelled Rihanna in a see-through lace number by Jean Paul Gaultier.</p>
- Bruno Mars<p> Mr Mars was looking pretty dapper in a three-piece suit and shades.</p>
- Kate Beckinsale<p> Beckinsale rocked a satin mini dress by Zuhair Murad.</p>
- Carrie Underwood<p> The singer wore a head-to-toe sequin design by Gomez Garcia.</p>
- Corrine Bailey Rae<p> Rae worked a textured LBD by Christian Siriano.</p>
- Paris Hilton<p> Paris kept things sleek and sophisticated in an embellished, belted column gown.</p>
- Ice-T and Coco<p> You wouldn't mess with this couple... Ice-T went suited and booted while Coco did her best to upstage him in a curve-enhancing gown.</p>
- Jane Seymour<p> Seymour sparkled in an off-the-shoulder, golden gown.</p>
- Julianne Hough<p> Hough got it right in a striped, strapless design.</p>
- Bonnie McKee<p> A contender for worst dressed? Bonnie McKee's tassle embellished black and yellow dress got her noticed for all the wrong reasons.</p>
- Kathy Griffin<p> Griffin played things a little safer in this pastel pink design.</p>
- Lily Aldridge<p> Mum-to-be Lily was blooming in head-to-toe Gucci.</p>
- Robyn<p> The singer showed off her unique red carpet style in a white t-shirt and cut-out skirt teamed with platform trainers.</p>
- Mitch and Janis Winehouse<p> Amy Winehouse's parents paid tribute to their daughter on the red carpet.</p>
- Cyndi Lauper<p> A lace corset, a maxi skirt with a slit to rival Rihanna's and a tuxedo jacket... Cyndi's outfit had it all.</p>
- Diana Krall and Elvis Costello<p> Krall looked ultra chic in an off-the-shoulder black gown while Costello ditched the tuxedo in favour of a printed shirt and trilby ensemble.</p>
- Gwyneth Paltrow<p> Gwyneth looked stunning in a simple Stella McCartney gown and barely-there makeup.</p>
- Lady Gaga and Paul McCartney<p> Lady Gaga shunned the red carpet this year, (let's face it, nothing could beat the egg) but she showed off her fishnet bodycon and corset ensemble next to Paul McCartney inside the awards ceremony.</p>
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