Photo: Rex Features
Yesterday, Rihanna left her hotel wearing a marble-print blazer by Stella McCartney. Obviously, in RiRi's books, a jacket can easily become a dress, if you forget about wearing anything on your legs or even a top underneath.
She completed her statement look with tinted shades and sandals. We wouldn't usually recommend economical dressing, but if anyone can pull it off, it's Rihanna.
So how do you rate her blazer dress style? Drop dead gorgeous or put some clothes on! Let us know in a comment and see more of the star in her fashion evolution below.
- MTV Music Video Awards, 2005, Florida<p> RiRi's casual awards style look featured a belly-baring top, embellished crop vest and white jeans. In case you missed her exposed abs, she even added a belly chain. </p>

- 19th Annual Kids' Choice Awards, 2006, CA<p> "S.O.S. please, someone help me!" Rihanna's hit song lyrics capture our feelings with regard to the singer's leggings and print top.</p>

- 3rd Annual Fashion Rocks, 2006, New York<p> Rihanna opts for slinky silver metallic as she attends Fashion Rocks in New York. Not a hit, but definitely a red carpet improvement.</p>

- Billboard Music Awards, 2006, Las Vegas<p> Rihanna turned heads in this flirty white Marilyn-inspired cocktail dress as she picked up the award for Female Artist of the Year.</p>

- Costume Institute Gala, 2007, New York<p> RiRi shows off a subversive sensibility with her mesh gloves and asymmetrical 'do.</p>

- MTV Video Music Awards, 2007, Las Vegas<p> Rihanna hasn't quite hit her style stride in this cleavage-boosting neon pink gown.</p>

- Clive Davis' Pre-Grammy party, 2008, L.A.<p> Rihanna covers up in an unflattering multicoloured printed dress. </p>

- 50th Annual Grammy Awards, 2008, L.A.<p> RiRi rocked this royal blue Zac Posen prom dress to the Grammys in 2008.</p>

- NBC's Today Show Concert Series, 2008, New York<p> Rihanna shows off a glimpse of what will become her signature - feminine style with a masculine touch - in this flirty frock and cap as she performs in New York.</p>

- Nickelodeon's Kids' Choice Awards, 2008, CA<p> Bustier meets baggy trousers on the red carpet.</p>

- BET Awards, 2008, L.A.<p> RiRi turned heads in this electric yellow Giambattista Valli dress.</p>

- American Music Awards, 2008, L.A.<p> The good girl goes bad in studded and fringed rocker leather as she collects her trophies at the AMAs in 2008.</p>

- Jingle Bell Ball, 2008, London<p> Rihanna keeps it simple in a black jumpsuit and heels - but adds an eye-catching accessory - to ring in the New Year.</p>

- Costume Institute Gala, 2009, New York<p> For her first public appearance post-Chris Brown assault, Rihanna went fierce and fabulous in this exaggerated shoulder tux by Dolce & Gabbana. It was definitely one of her more controversial looks, but we have to applaud the singer for making such a strong fashion statement.</p>

- Christian Dior catwalk show, 2009, Paris<p> RiRi proves that black is anything but boring as she hits the Paris Fashion Week front row, debuting a new hair hue.</p>

- American Music Awards, 2009, L.A.<p> The singer stunned in this laser-cut Marchesa frock at the AMAs in 2009. Talk about drama on the red carpet!</p>

- Glamour Women of the Year ceremony, 2009, New York<p> The star was honoured for her philanthropic work at Glamour's Women of the Year ceremony in 2009 and chose this fishtail Stephane Rolland Couture gown.</p>

- Clive Davis' Pre-Grammy Gala, 2010, L.A.<p> When Viktor & Rolf showed their crazy chainsaw-hacked dresses on the catwalk, we wondered who would be able to pull off their beautiful but overwhelming pieces. Rihanna does a fantastic job of ensuring she wears the dress - and the dress doesn't wear her.</p>

- 52nd Annual Grammy Awards, 2010, L.A.<p> RiRi paired her blonde quiff with an Elie Saab feather-bedecked, high-necked couture gown at the Grammys in 2010.</p>

- ECHO Awards, 2010, Berlin<p> We're not sure this caped crusader look, with plunging neckline and exaggerated shoulders, is quite as superheroic as RiRi can be on the red carpet.</p>

- Nickelodeon's 23rd Annual Kids' Choice Awards, 2010, L.A.<p> Rihanna went feminine and flirty in Christian Dior. She even made socks with stilettos look cute. Sort of.</p>

- MTV Europe Music Awards, 2010, Madrid<p> The singer looked sophisticated in this ruffled Marchesa gown and fire engine red hair.</p>

- American Music Awards, 2010, LA<p> Rihanna wowed in a red lace gown by Elie Saab.</p>

- 53rd Annual Grammy Awards, 2011, L.A.<p> The singer tried one of her most risque looks to date in this sheer Jean-Paul Gaultier Couture dress. </p>

- BRIT Awards, 2011, London<p> The singer brought some colour to the red carpet in this strapless Christian Dior Haute Couture ballgown. </p>

- Costume Institute Gala, 2011, New York<p> Another red carpet event, another chance to go dramatic in a sheer dress. For the McQueen Savage Beauty opening, RiRi opted for sexy lace Stella McCartney.</p>

- Billboard Awards, 2011, Las Vegas<p> Rihanna suited up in this sexy white tux from Max Azria.</p>

- 54th Annual Grammy Awards, 2012, L.A.<p> Rihanna co-designed her striking black Giorgio Armani dress and she proves that she can pull off simple-sexy as well as crazy-dramatic.</p>

- Stella McCartney presentation, 2012, London<p> Lately, RiRi's been working the high-slit slip dress on the red carpet - to great effect. This green version by Stella McCartney is stunning on the singer.</p>

- BRIT Awards, 2012, London<p> Rihanna vamped it up in sparkling Givenchy Couture at the BRIT Awards. </p>

- Street style, 2012, London<p> Even Rihanna can't pull off triple denim and <em>Pretty Woman</em>-inspired thigh-high boots (especially on the street in the middle of the day). Or can she?</p>

- Def Jam Records Showcase, 2005<p> Rihanna's debut album, <em>Music of the Sun</em>, reached the top 10 on the Billboard 200 chart when it was released in 2005. Fashion-wise, she dressed the part of a 15-year-old in funky trainers, splattered denim and a colourful crop top.</p>

