It was an early 9 a.m. showing during London Fashion Week, but we're sure no one was dozing off during Mary Katrantzou's Spring runway show. The season's bold prints trend couldn't come at a more fitting time for the designer known for her signature bold graphic patterns. The collection, based off of Katrantzou's nature-versus-nurture theme, was exemplified through bold floral, bird, and coral reef prints splashed on structural one-shoulder and asymmetric dresses made in modern high-tech fabrics. Printed pants and colorblocked blazers provided even more partywear inspiration; as did the bright lipstick and metallic shoes provided by Christian Louboutin. We can't wait to see which celebs will wear her designs on the red carpet. More details from the vibrant collection below.

• Trends: structural print dresses, asymmetrical hemlines, printed trousers.
• Colors: red, orange, blue, green, yellow.
• Key Look: we loved all of the short printed dresses.
• Accessories: a colorful array of metallic peep-toe sandals by Christian Louboutin.
• Who Would Wear It: girls who crave unique prints with a twist like Keira Knightley and Diane Kruger.

We first saw Roksanda Ilincic's collection as a part of Topshop's New Generation Initiative in 2005 — cut to Spring 2012 fashion week, and the designer is showcasing the kind of modern separates and dresses with a hint of the avant-garde sensibility she became known for. The collection hits on all the wardrobe essentials — delivering sheath dresses, maxis, blouses, and trousers — all the makeup for a perfectly outfitted closet but with whimsical edge. Hot pink makes its way onto a day dress, turquoise brightens up a top and pants, and floral and wide windowpane prints make their way across the collection. Then, there's the play with volume and proportion, like slim pencil-skirted dresses with bell-sleeved tops; dresses are either straight up or down or full and flared. You can sense the sophistication and the playfulness that have made both Michelle Obama and Kate Middleton fans of Roksanda. Like the balance between the model sporting the pink locks and the perfectly sensible little neutral dress she's wearing — there's a just a touch of fantasy underlying the impeccably chic execution.

• Trends: Colorblocking, maxi silhouettes, volume.
• Colors: Pink, blue, turquoise, gray, nude, gold yellow, florals.
• Key Look: The hot pink bell-sleeved sheath dress.
• Accessories: Knit headbands and beanies, bright ankle-strap heels.
• Who Would Wear It: Girls with an eye for sophisticated cuts and statement color; fans like Michelle Obama and Kate Middleton, but we bet Kate Bosworth could rock that hot pink dress .

Though it started as a leather goods shop in 1913 by brothers Martino and Mario Prada, Mario's great granddaughter Miuccia Prada would transform the company into the design powerhouse it is today. First would be her line of waterproof backpacks and totes in 1979 that would go on to inspire the release of Prada's definitive nylon totes and handbags in 1984. In 1989, Miuccia and her partner, Patrizio Bertelli, launched Prada's first ready-to-wear line, instantly gaining recognition for its clean lines and luxe fabrics, and rocketing the Prada label to a coveted status symbol. Now with Miuccia at the helm for more than 30 years, Prada's ready to wear has been shaped by artful, whimsical talent that takes us from ladylike, curve-conscious dressing one season to dramatic textures and boxy shapes the next. Its fan base and influence knows no bounds — and it's not hard to see why the label has remained a fashion mainstay and a design house heavy hitter. Click through for a look back at some of the brand's most memorable runway looks.