When Carine Roitfeld launches a magazine, everyone pays attention. Saturday night, the former Vogue Paris editor feted CR Fashion Book with a long gown-only dress code (she opted for Alaïa, and let's just say we were dressed much more modestly), Ryuichi Sakamot piano performance (which was followed by a DJ set that included Kanye West and other Top 40 hits), and, of course, a lot of models. A lot.

Kate Upton, the magazine's first cover girl, was in attendance, looking glamorous and sultry in a low cut gown with smokey eye makeup and tousled hair.

After spotting Upton by the front entrance, we realized that this party had become a test: How many supermodels do you recognize? We planted ourselves by the front door and started playing. Karlie Kloss? There. Joan Smalls? Right next to her. Lindsey Wixson? Bar Rafaeli? Isabeli Fontana? Karen Elson sporting a brand new bob? You get the idea.

Although the models roamed throughout the party, Carine Roitfeld was still queen (she even upstaged Alessandra Ambrosio in an Angelegging contest). Check out the photos below to see more from the Mercedes Benz and Belvedere-hosted launch of CR Fashion Book at The Frick Collection in NYC, and let us know which model you think had the best style.

Loading Slideshow...

  • Kate Upton and Carine Roitfeld

    All photos: David X Prutting/BFAnyc.com

  • Kate Upton and Carine Roitfeld

    David X Prutting/BFAnyc.com

  • Kate Upton

    David X Prutting/BFAnyc.com

  • Kate Upton

    David X Prutting/BFAnyc.com

  • Kate Upton

    David X Prutting/BFAnyc.com

  • Andre Leon Talley

    David X Prutting/BFAnyc.com

  • Derek Blasberg and Karen Elson

    David X Prutting/BFAnyc.com

  • Julia Restoin-Roitfeld

    David X Prutting/BFAnyc.com

  • Isabeli Fontana

    David X Prutting/BFAnyc.com

  • Isabeli Fontana

    David X Prutting/BFAnyc.com

  • Stephen Gan

    David X Prutting/BFAnyc.com

  • Jessica Hart

    David X Prutting/BFAnyc.com

  • Karen Elson, Stephen Gan, Derek Blasberg

    David X Prutting/BFAnyc.com

  • Alexander Wang and Ryan Korban

    David X Prutting/BFAnyc.com

  • Andy Valmorbida and Peter Brant Jr.

    David X Prutting/BFAnyc.com

  • Leigh Lezark

    David X Prutting/BFAnyc.com

  • Lulu Buti, Claire Courtin-Clarins

    David X Prutting/BFAnyc.com

  • Carine Roitfeld, Kate Mulleavy, Cecilia Dean

    David X Prutting/BFAnyc.com

  • Virginie Courtin-Clarins, Caroline Sieber

    David X Prutting/BFAnyc.com

  • Kate Upton and Carine Roitfeld

    David X Prutting/BFAnyc.com

  • Kate Upton and Carine Roitfeld

    David X Prutting/BFAnyc.com

  • Alessandra Ambrosio, Carine Roitfeld, Izabel Goulart, Anna Khouri

    David X Prutting/BFAnyc.com

  • Alessandra Ambrosio

    David X Prutting/BFAnyc.com

  • Isabel Goulart, David X Prutting, Alessandra Ambrosio

    David X Prutting/BFAnyc.com

  • Izabel Goulart

    David X Prutting/BFAnyc.com

  • Lorenzo Martone

    David X Prutting/BFAnyc.com

  • Julia Restoin-Roitfeld and Claire Courtin-Clarins

    David X Prutting/BFAnyc.com

  • Magdalena Frackowiak, Constance Jablonski, Edita Vilkeviciute, Lindsey Wixson

    David X Prutting/BFAnyc.com

  • Edita Vilkeviciute, Magdalena Frackowiak

    David X Prutting/BFAnyc.com

  • Lindsey Wixson

    David X Prutting/BFAnyc.com

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