Sidewalk Style

Jessica Alba stopped at a Starbucks before heading to The Honest Company office in a printed blazer, rolled-up jeans, a studded belt and pumps, and Carrera by Jimmy Choo sunglasses.

Sienna Miller wore Matthew Williamson to accompany the designer on a night out at Groucho Club in London.

Poppy Delevingne wore a sheepkin waistcoat, grey cotton top, ripped jeans and green emboirdered boots at Groucho Club in London.

Emma Watson wore an Out of Print sweater printed with the original 1925 cover design of The Great Gatsby, a thigh-high-slit skirt and sandals out and about in New York.

Ashley Greene wore a bright yellow tee, denim shorts and grey suede boots for a trip to a grocery shop in Los Angeles.

Rose McGowan shopped in Beverly Hills in a pleated a-line skirt with a transparent panel, and a white crop-top for a contemporary edge.

Lady Gaga worked her latest beauty statement - a painted face - for a third day in a row in Los Angeles, wearing a black dress, gloves and boots to contrast.

Rihanna worked an army-print top and sandals with rolled up skinny jeans in New York. Her sunglasses are by Le Specs Bowie.

Selma Blair opted for a contemporary take on the broderie anglaise dress while running errands in Los Angeles.

Emma Watson was spotted in a midi-length, white dress as she entered her hotel in Tribeca, New York.

Jessica Alba wore printed trousers, a leather jacket and black pumps to The Honest Company office in Los Angeles.

Monica Bellucci flew from Paris to Dubrovnik Airport in Croatia, wearing a tied-up denim shirt, geometric-print, maxi skirt and cork platform sandals.

Lady Gaga stayed true to her bold style when she met fans at a radio studio in Los Angeles. She donned a large cloak coat, lace-up boots and her latest beauty statement - a painted face.

Amanda Seyfried changed into jeans, a leather jacket and red pumps for a dinner at Yauatcha restauarant in London.

Mollie King dressed for the warm weather in London in a printed little dress and fringed suede sandals.

Kelly Brook wore Chloé's popular 'Susanna' boots with a printed frock and Chanel shoulder bag whilst walking out and about in London.

Hayden Panettiere was spotted wearing Chloé's popular 'Susanna' boots at the Los Angeles International airport.

Alessandra Ambrosio wore a light blue Breton top, ripped light-blue jeans, a white pashmina and straw fedora for her flight from LAX airport in Los Angeles.

Hilary Duff opted for floral print leggings with Nike trainers in Los Angeles.

Katy Perry donned a striped headscarf and Ray-Bans at LAX airport in Los Angeles.

Rihanna wore her G4Life RIver Island collection to Da Silvano, an Italian restaurant in New York.

Rihanna wore a printed tee with ripped jeans and heels to Lyon restaurant in New York.

Ashley Greene walked the streets of Los Angeles in a simple white tee, beige leggings and brown woven shoes.

Hayley Atwell was snapped in a Ted Baker London oil-painting-print top and pumps, leaving Trafalgar Studios, where she's starring in the stage production The Pride.

Jennifer Garner wore a striped grey top, jeans, grey slipper shoes and tortoise shell sunglasses to the Brentwood Country Mart in Los Angeles.

Eva Longoria paired her all-white look with studded Valentino Garavani pumps for Newark Mayor Cory Booker's rally in New Jersey.

Keri Russell opted for classic lines with this white shirt and ripped skinny jeans. Her printed shoes and red lips added a pop of colour as she walked the streets of New York.

Lady Gaga was spotted in Los Angeles in a long-sleeved, maxi black dress and her latest beauty statement - the painted face.

Kelly Brook in London.

Selma Blair was out and about with her son in Los Angeles in rolled up jeans and brogues.

Heidi Klum went grocery shopping with her family at Whole Foods in Brentwood LA in a printed kaftan top and black leggings.

Kate Moss wore a delicate see-through dress over her bikini in Formentera, Spain.

Naomi Watts added a fedora hat, stripey bag and a pair of yellow sunglasses to her sports gear as she watched her sons play and walked her dog in New York.

Gwyneth Paltrow wore a white, padded-shoulder dress with studded yellow sandals at an East Hampton Library's Authors Night in New York.

Eva Longoria shopped at the Beverly Glen Market Place in Los Angeles in white linen trousers, a salmon-coloured cotten top and camel-coloured platform sandals.

Rose McGowan opted for monochrome colours while visiting Sunset Plaza in Hollywood.

Jennifer Garner popped out for a takeaway coffee from The Larder in Los Angeles wearing a black hooded cardigan over a tie-dye t-shirt, skinny jeans and black Oliver Peoples sunglasses.

Ellen DeGeneres was snapped getting into her car in LA wearing blue on white.

Kate Moss wore a powder pink shirt and striped shorts while on holiday in Formentera, Spain.

Hayley Atwell was spotted in a floral-print top and pink skinny jeans leaving the Trafalgar Studios in London, where she is performing in The Pride.

Amanda Seyfried wore a yellow embroidered dress with a leather jacket on the streets of London before she headed to the Capital FM studios.

In Los Angeles.

In New York.

In Los Angeles.

Heidi Klum at a Starbucks in Brentwood, Los Angeles.

In New York.

In New York.

Heidi Klum out in SoHo, New York, with father Gunther Klum.

In Los Angeles.

In Brentwood Country Mart in Los Angeles.

Out and about in New York with family.

At LAX aiport in Los Angeles.

Shopping at Williams-Sonoma in Santa Monica.

In New York.