Is Kate Upton a bombshell bikini model, the object of every male's fantasies, or an elegant fashion model, the object of editors and designers' delight? The Sports Illustrated covergirl's identity seems to switch nearly every day.

But on this day it's undoubtedly clear: Kate is a fashion girl. The blonde graces the cover of Carine Roitfeld's widely anticipated glossy, CR Fashion Book, which hits newsstands September 13. Given Carine's celeb status, the new mag has been gaining buzz among fashionistas for months... now it's finally here and Kate Upton is the star.

The black and white cover pic, snapped by Bruce Weber, combines Kate's multiple model identities into one lovely shot -- it's sexy and just a tad cleavage-y yet she's clad in a demure sweater holding baby chickens. (A second cover features Audrey Harrelson holding an infant.)

Say what you will about Upton, but to our mind picking Kate makes perfect sense: the theme of the issue is Rebirth, with the pages full of baby animals, a very pregnant Julia Restoin-Roitfeld and models Marte Mei van Haaster and Marie Piovesan holding an infant and pushing a pram. Perhaps Kate Upton is due for a rebirth of sorts, the chance to brand herself once and for all as a sophisticated model to be taken seriously by the fashion establishment. An endorsement from Carine Roitfeld, the former Vogue Paris editor-in-chief, would certainly get the job done.

Then again, knowing Kate, she could be back in her bikinis, dancing for Terry Richardson and sucking on a popsicle tomorrow.

See a preview of the cover as well as two inside shots below, plus read more about the publication here. Will you purchase the $15 magazine when it hits stands on September 13?

PHOTOS:

kate upton cr fashion book

foreword

lullaby

See how Kate Upton's past work compares...

Loading Slideshow...
  • Vogue US, June 2013

    (Courtesy photo)

  • Harper's Bazaar, April 2013

  • Vogue UK, January 2013

    (Courtesy photo)

  • Vogue Italia, November 2012

    (Courtesy photo)

  • Vogue, November 2012

    (Courtesy photo)

  • CR Fashion Book, Fall 2012

    (Courtesy photo)

  • Interview Russia, July 2012

    (Ellie Muliarchyk photo)

  • GQ, July 2012

    (Courtesy photo)

  • July 2012

    20 year-old Kate Upton denies rumors that she was drinking alcohol at a Detroit Tigers baseball game (TMZ Photo)

  • Vogue, July 2012

    (Courtesy photo)

  • June 2012

    "The Many Talents Of Kate Upton" presented by GQ and shot by Terry Richardson (Youtube)

  • May 2012

    Kate Upton at amfAR's Cinema Against AIDS (Getty photo)

  • May 2012

    "Schiaparelli And Prada: Impossible Conversations" Costume Institute Gala at the Metropolitan Museum of Art (Getty photo)

  • May 2012

    Cannes Film Festival (Getty photo)

  • April 2012

    Bloomberg & Vanity Fair Cocktail Reception following the 2012 White House Correspondants' Association Dinner (Getty photo)

  • May 2012

    Kate Upton dances the "Cat Daddy" for Terry Richardson (Youtube)

  • April 2011

    Kate Upton's famous Youtube video where she dances the "Dougie" at a Los Angeles Clippers game (Youtube)

  • Sports Illustrated, March 2012

    (Courtesy photo)

  • Esquire, March 2012

    (Courtesy photo)

  • Carl's Junior, February 2012

    (Youtube)

  • February 2012

    (Courtesy photo)

  • Beach Bunny 2012

    (Courtesy photo)

  • Remix, August 2011

    (Courtesy photo)

  • Guess S/S 2011

    (Courtesy photo)

  • Guess S/S 2011

    (Courtesy photo)

  • Guess S/S 2011

    (Courtesy photo)

  • Guess S/S 2011

    (Courtesy photo)

  • Victoria Secret Spring 2011

    (Courtesy photo)

  • Esquire Mexico, March 2012

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • Accessorize S/S 2013

  • May 2012

  • September 2012

  • September 2012

  • October 2012

  • October 2012

  • February 2013

  • February 2013

  • February 2013

  • February 2013

  • February 2013

  • March 2013

  • March 2013

  • May 2013

  • May 2013

Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr and Pinterest.