Week Best Dressed 23 March
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Jennifer Lawrence out and about in New York, America - 21 Mar 2015
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Rihanna in Dior 'Home' film premiere, Los Angeles - 22 March 2015
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Rihanna in Dior at 'Home' film premiere, Los Angeles - 22 March 2015
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Lily James in Altuzarra at 'Cinderella' film exhibition photocall, Leicester Square Gardens, London - 20 March 2015
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Kerry Washington in Hellessy at GLAAD Media Awards, Los Angeles - 21 March 2015
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Jennifer Lopez at 'Home' film premiere, Los Angeles - 22 March 2015
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Zoe Saldana in Cushnie et Ochs at GLAAD Media Awards, Los Angeles - 21 March 2015
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January Jones in Preen at 'Mad Men' TV Series screening, New York - 22 March 2015
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Amanda Seyfried in Valentino at 'While We're Young' film premiere, New York - 23 March 2015
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Lea Seydoux at 'Diary of a Chambermaid' film premiere, Paris - 23 March 2015
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Amber and Yasmin Le Bon at Christopher Kane flagship store opening, London - 24 March 2015
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Erin O'Connor at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Caroline Seiber and Laura Carmichael at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Jessie Ware at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Daisy Lowe at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Laura Carmichael at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Salma Hayak at Christopher Kane flagship store opening, London - 24 March 2015 [Rex]
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Katy Perry at 'Katy Perry: The Prismatic World Tour' film premiere, Los Angeles- 26 March 2015
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Victoria Beckham arrives at the Los Angeles International Airport - 26 March 2015
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Jamie Chung at Banana Republic's New Flatiron Flagship Grand Opening, New York - 26 March 2015
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Jennifer Connelly at Louis Vuitton Series 2 Exhibition, Beijing - 26 March 2015
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Millie Mackintosh in Reformation in the Samsung Bluehouse at Alexander McQueen: Savage Beauty private view and dinner at the V&A Museum, London - 30 Mar 2015
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Kendall Jenner out and about, New York - 31 March 2015
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Rita Ora in Tommy Hilfiger at Tommy Hilfiger store opening, Paris - 31 March 2015
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Behati Prinsloo at Tommy Hilfiger store opening, Paris - 31 March 2015
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Jamie Chung at 'Resident Advisors' TV show premiere, Los Angeles - 31 March 2015
Lats night, Katy Perry hit the red carpet for the premiere of 'Katy Perry: The Prismatic World Tour' film and did the goth thing (again) in black Balenciaga with over-the-knee lace up Giambattista Valli boots and a dark berry lip.
On Tuesday Evening Christopher Kane opened the doors to his first ever stand alone store. Kane's guests at the launch included Laura Carmichael, Salma Hayek, Erin O'Connor, Caroline Sieber and Yasmin and Amber Le Bon.
In other best dressed news, this month it was announced that Rihanna was to become the first black face at Dior, joining Natalie Portman, Marion Cotillard and Jennifer Lawrence as Dior girls. This weekend was the beginning of her red carpet 'Dior era' - she attended the Home premiere in a ladylike dusty pink Raf Simons creation with a nipped in waist and full ankle-grazing skirt.
In other red carpet news we have Kerry Washington in a purple Hellessy gown with a plunging red satin bodice at the GLAAD Awards. Jennifer Lawrence attended a screening of Serena in a Dior minidress with a sequin striped bodice, cut-outs at the waist and a white textured skirt. J-Law also wore one of the most perfect monochrome day looks we've ever seen on the streets of New York, by (who else?) Dior.
Take a look through the gallery above to see who is wearing what this week in the gallery above...