A very blonde and very baby-faced Cara Delevingne made an appearance at the Robert Cavalli 40-year celebration at Paris Fashion Week in September 2010. Photo by Getty Images.
Later that year, Delevingne rocked the model-off-duty look with a crisp white bibbed shirt and black jeans for a part in London, England, November 2010. Photo by Nick Harvey/WireImage.
Delevingne made her Met Gala debut at the 2011 event for "Alexander McQueen: Savage Beauty" in a Burberry gown with fellow model Douglas Booth. Photo by Getty Images.
At the following year's Met Gala for "Schiaparelli and Prada: Impossible Conversations," Delevingne walked the red carpet with Jourdan Dunn in Burberry yet again, a relatively understated look for the budding style star. Photo by Getty Images.
For the 2012 amfAR gala at Cannes, Delevingne wore a forest green Burberry Prorsum gown, inaugurating her color phase. (It didn't last long.) Photo by Getty Images.
Delevingne's Emilio Pucci hints at her penchant for a plunging neckline, but with a bit more color than her later style choices.
Cara Delevingne at the MAC and Carine Roitfeld party 'Le Bal' in Paris, France, October 2012. Photo by Getty Images.
Delevingne was dubbed Model of the Year at the British Fashion Awards in 2012, an accolade she accepted in a metallic green Burberry shift. Photo by Getty Images.
At the 2013 Met Gala for "Punk: From Chaos to Couture," Delevingne threw it back to her gala debut two years prior in a similar, but more daring, Burberry design. Maturing hand-in-hand with Christopher Bailey. Photo by Getty Images.
Delevingne again selects Burberry--this time for her Cannes debut, appearing at the opening ceremony and The Great Gatsby premiere in May 2013. Photo by Getty Images.
In a rare diversion from her usual look, Delevingne eschews Burberry in favor of Stella McCartney (she also arrived as part of the designer's squad), making the pantsuit look work for her. Photo by Getty Images.
Delevingne's embellished Roberto Cavalli gown wasn't even the highlight of her look for the 2014 De Grisogono party at the Cannes Film Festival — instead, it was the De Grisogono monkey necklace she wore slung over her back. Photo by Getty Images.
From model to movie star — Delevingne was spotted on the Paper Towns press circuit in a Dion Lee minidress with Saint Laurent sandals, and a superhero-esque shade of eyeshadow (perhaps foreshadowing her Suicide Squad casting to come).
Cara Delevingne at the Australian premiere of Paper Towns in Sydney, Australia, July 2015. Photo by Getty Images.
And from Burberry girl to Saint Laurent — at the New York premiere of Paper Towns, Delevingne opted for a shimmery Saint Laurent look, sticking with the minidresses that served her well over the course of the press tour. Photo by Getty Images.
British It girls, unite. Delevingne hasn't cut ties with Burberry by any means; she and Kate Moss appeared at the house's Spring 2015 show together. Photo by Getty Images.
Delevingne is a woman of many hats, moving fluidly back and forth between the fashion and film worlds (and, more than occasionally, mixing the two). She wore a feathered Burberry mini for the premiere of Pan in London, England, September 2015. Photo by Getty Images.
Then, of course, there's her long-standing muse-ship with Karl Lagerfeld; she oozed Chanel couture at the fashion house's Spring 2016 presentation. Photo by Getty Images.
Delevingne recently joined the #BalmainArmy, wearing one of Olivier Rousteing's body-con jumpsuits for the MTV Movie Awards in Burbank, California, April 2016. Photo by Getty Images.