While we prepare our barbecue menus, pack our beach bags and strategize the best firework-watching locations, celebs and designers are in Paris making some fancier plans. It's Couture Week, guys, when all of Hollywood's classiest It Girls pull up alongside designers, editors and assorted socialites to take in the world's best fashion from the front row.

Yesterday was all about Dior -- Raf Simons made his debut for the label and everyone was on hand to judge his success (or failure). But today other designers got their moment to shine, namely Giorgio Armani at Armani Prive and Karl Lagerfeld at Chanel. One day, two major couture shows: who landed the best guests?

As he does for ready-to-wear, Karl presented his Couture Fall 2012 collection in the Grand Palais. Among the grand guests were Milla Jovovich, Poppy Delevigne, Sofia Coppola, Clemence Poesy, Ines de la Fressange and Karl BFFs Alexa Chung and Diane Kruger. One less predictable face? Leslie Mann, wife of Judd Apatow and the best part of "Knocked Up." Who knew Mrs. Apatow was a couture fan?

Turns out she's fairly devoted, considering she pulled a double-header and showed up at the Armani Prive show as well. She was joined by Zoe Saldana, Shailene Woodley, Sophia Loren and the typical editor coterie: Anna Wintour, Anna Dello Russo, Carine Roitfeld, etc.

So... Chanel FTW? Not so fast. Also spotted at Armani were Princess Tatiana of Greece and Denmark and Princess Charlene of Monaco, taking in a second day of couture shows. Royals! In the flesh! Swoon.

So who has it: the It Girls vs. the Princesses? Judge for yourself in our fashion-filled slideshow.

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  • Chanel

    Diane Kruger & Joshua Jackson (Getty Photo)

  • Chanel

    Milla Jovovich (Getty Photo)

  • Chanel

    Sofia Coppola (Getty Photo)

  • Chanel

    Clemence Poesy (Getty Photo)

  • Chanel

    Lou Doillon (Getty Photo)

  • Chanel

    Caroline Sieber (Getty Photo)

  • Chanel

    Alexa Chung (Getty Photo)

  • Chanel

    Leslie Mann (Getty Photo)

  • Chanel

    Victoria Traina & Vanessa Traina (Getty Photo)

  • Chanel

    Bee Shaffer (Getty Photo)

  • Chanel

    Ines de la Fressange (Getty Photo)

  • Chanel

    Anna Wintour (Getty Photo)

  • Chanel

    Laetitia Casta (Getty Photo)

  • Chanel

    Poppy Delevigne (Getty Photo)

  • Giorgio Armani Prive

    Carine Roitfeld (Getty Photo)

  • Giorgio Armani Prive

    Zoe Saldana (Getty Photo)

  • Giorgio Armani Prive

    Sofia Loren (Getty Photo)

  • Giorgio Armani Prive

    Anna Dello Russo (Getty Photo)

  • Giorgio Armani Prive

    Leslie Mann (Getty Photo)

  • Giorgio Armani Prive

    Dolores Chaplin (Getty Photo)

  • Giorgio Armani Prive

    Claudia Cardinale (Getty Photo)

  • Giorgio Armani Prive

    Virginie Courtin-Clarins (Getty Photo)

  • Giorgio Armani Prive

    Isabelle Huppert (Getty photo)

  • Chanel Fall 2012 Ready-to-Wear Collection

    Runway footage from the Chanel Fall 2012 show at Paris Fashion Week.

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