Cate Blanchett works a directional look in a graphic Louis Vuitton dress in Tokyo while Alexa Chung rocks 90s inspired style at the Villoid party in Los Angeles.
Elsewhere, stars including Naomie Harris and Jourdan Dunn flaunt their fashion colours in spring-ready hues at the Kate Spade party in London.
Come and see all the best looks from the week so far.
Alexa Chung pairs a bright pink lace trimmed slip dress by NK Imode with black high-top Converse trainers at the Villoid Garden Tea Party in Los Angeles.
Poppy Delevingne works a boho look in a white ruffled peasant blouse with pastel tassels by Chloe and washed denim cut-offs. The model opts for statement accessories including a tan suede tasseled Chloe satchel and gold lace-up Poppy Delevigne x Aquazzura sandals at the Villoid Garden Tea Party in Los Angeles.
The actress opts for a fashion-forward look in a yellow, black and white geometric dress with a ruffled hem by Louis Vuitton, topped off with black and white speckled sandals and one gold statement earring at the Volezi, Voguez, Voyagez Louis Vuitton exhibition in Tokyo.
Katy Perry wears a white lace Gucci mini-dress with ruffle detailing and an embellished black bow, accessorised with sheer black ankle socks and pastel pink Mary Jane heels. The singer finishes off her look with a bold purple lip and her hair worn in a crown braid at the Make More Happen photocall in Los Angeles.
The actress works a colourful look in a coral Kate Spade shift dress paired with orange and black Christian Louboutin heels featuring an iridescent ankle strap at the Kate Spade flagship store opening party in London.
The Game of Thrones star wears a floral embroidered navy pencil dress with a blue leather jacket, adding a nonchalant touch with an acrylic Kate Spade clutch featuring a polar bear clasp at the Kate Spade store opening party in London.
Jourdan Dunn works a demure look in a pastel pink lace midi-dress by Kate Spade and blush suede heels. The model continues the colour palette with matching eyeshadow and nail polish at the Kate Spade store opening party in London.
Daisy Lowe adds edge to a classic look, pairing a leather biker jacket with a breton striped Kate Spade dress and red Christian Louboutin heels, accessorised with a mint Kate Spade clutch and a red lip at the designer's store opening party in London.
The actress opts for a red spaghetti strap dress by Christopher Kane, with cut-out detail around the waist and brooches pinned to the neckline and hip, finishing off the look with silver sandals at the High-Rise film premiere at Tribeca Film Festival in New York.
Kate Bosworth works a tailored look in a silky two-piece set by Monse, featuring a panelled top with oversized buttons and slit leg trousers. The actress finishes off the look with a small box clutch, black Kurt Geiger courts and an orange lip at the Crackle Upfront presentation in New York.
Emily Ratajkowski wears an off-the-shoulder navy Bec & Bridge dress with silver Stuart Weitzman sandals and a suede Burberry handbag at Glamour's Game Changers Lunch in Los Angeles.
The actress pairs a black and white print A.L.C Randi dress with a gold necklace and nude lace-up Aquazzura sandals at Glamour's Game Changers Lunch in Los Angeles.
Jaime King works the pyjama trend in a purple ruffled shirt with bow tie at the neck and matching wide leg trousers, finishing off the look with a pink Rebecca Minkoff clutch at Glamour's Game Changers Lunch in Los Angeles.
The singer pairs a silver leather mini-skirt and white shirt by Manning Cartell with silver sandals at Glamour's Game Changers Lunch in Los Angeles.
The Girls star wears a blue lace dress with drop earrings and a red lip at the 8th Annual Blossom Ball in New York.
Lena Dunham pairs colourful printed cropped trousers with a white cut-out top and white blazer, accessorising the look with white kitten heels and a black pendant choker at the 8th Annual Blossom Ball in New York.
The actress opts for a white shirt with cuffed sleeves, a floral pleated midi-skirt and black suede courts, finishing off the look with a gold statement necklace, a wide belt and a red lip at the celebration of her cover with Good Housekeeping in New York.
Naomi Campbell opts for a coordinated look in a semi-sheer leopard print blouse and leopard print wide leg cropped trousers. The model tops off the look with a brown oversized buckle belt, black peep-toe boots and a suede Theory coat at a book signing in London.
Rose Byrne works a high-neck crochet blue midi-dress subtly embellished with jewels on the neck, cuffs and waist. The actress finishes off the look with a blue box clutch, gold courts and her hair worn in a voluminous updo at the The Meddler film premiere at Tribeca Film Festival in New York.
The Game of Thrones star works a two-in-one dress with a white Peter Pan collar shirt and tie and floral scallop hem skirt, finishing off the look with green and pink ankle strap courts at the Game of Thrones Season Six press conference in Tokyo.
Katie Holmes pairs black jacquard high waisted trousers with a sleeveless blouse and black sandals, adding a pop of colour with a pink Chanel bag at the Chanel Artists Dinner at Tribeca Film Festival in New York.
The actress wears a black embellished leather dress and black coat with lace tights and casual ankle boots at the Chanel Artists Dinner at Tribeca Film Festival in New York.
Zoe Kravitz wears a black spaghetti strap dress with a sheer panel over the plunging neckline. She accessorises the look with silver chain drop earrings and a mini bucket bag at the Vincent N Roxxy film premiere at Tribeca Film Festival in New York.
Charli XCX opts for a pinstripe jumpsuit with cut-out detail at the front, finishing off the look with silver and gold chokers and black shoes at the SESAC Pop Awards in New York.
The singer opts for a musically inspired number in a purple wrap midi-dress with silver, black and orange sandals at the SESAC Pop Awards in New York.
The actress clashes prints in a patchwork floral Bottega Veneta shirt dress nipped in at the waist with a snakeskin belt worn with grey suede courts at the The Meddler film screening in New York.
The actress works a black tailored Dior dress with embellished shoulders, finishing off the look with black peep-toe mules and her hair worn in a sleek bob at A Beautiful Planet film premiere in New York.
The actress sparkles in a colourful, sequinned bell sleeved Louis Vuitton dress accessorised with silver Louis Vuitton sandals and cobalt blue earrings by Fred Leighton at the The Family Fang film premiere at Tribeca Film Festival in New York.
The actress turned director wears a black blazer over a grey metallic dress by Emanuel Ungaro with black sheer lace courts at the Women's Filmmaker Luncheon at Tribeca Film Festival in New York.
Emily Ratajkowski wears a blue and white strapless Jonathan Simkhai dress with nude sandals as she hosts the PopSugar kick-off party at Coachella in Palm Springs.
The singer wears a guitar print halterneck bodycon dress by Jeremy Scott with pink fluffy slides and her hair worn in matching pink buns at the Jeremy Scott Party at Coachella in Palm Springs.
The actress dresses up denim cut-offs with a striped sequin Sonia Rykiel mini-dress worn as a top, finishing off the look with red tinted sunglasses, a black choker and Reebok trainers at the Levi's x Suki Waterhouse party at Coachella in Palm Springs.
The actress pairs chambray dungarees with a strapless floral crop top and nude wedges at the Levi's x Suki Waterhouse party at Coachella in Palm Springs.
The Scream Queens star clashes prints in a red gignham Jonathan Simkhai sundress and Coach tiger print ankle boots at the CFDA and PopSugar brunch at Coachella in Palm Springs.
The actress wears a pale blue and white embroidered dress with khaki sandals at the CFDA and PopSugar brunch at Coachella in Palm Springs.
The model amps up her look by accessorising a cream crochet dress with round purple sunglasses, a statment silver necklace, fringed suede crossbody bag and khaki lace-up sandals at Perverse Cirque at Coachella Festival in Indio.
Suki Waterhouse wears Tommy Hilfiger dungarees over a white mesh top, finishing off the look with oversized pink sunnies, frilly ankle socks and white trainers at Perverse Cirque at Coachella Festival in Indio.
The actress rocks a button front denim mini-dress with a floral clutch and tan platform sandals at the REVOLVE Desert House event in Thermal.