Business at the front, party at the back!

Gwyneth Paltrow ditched her underwear in a risqué Antonio Berardi gown at the "Iron Man 3" premiere in Hollywood on Wednesday night.

The "Most Hated" AND the "Most Beautiful" actress showed off her gorgeous gams and a hint of sidebum in a long, flowing dress with sheer side panels and kimono-inspired sleeves. Looks like someone has been doing their pilates with trainer-to-the-stars Tracy Anderson!

Gwyneth, who plays Tony Stark's girlfriend/employee Pepper Potts in the "Iron Man" series, kept her blond locks blow dried straight and swept to the side in a simple cut, so as not to distract us from her eye-popping outfit.

The 40-year-old mom-of-three has been on a whirlwind "Iron Man 3" press tour these past couple of weeks and has blown us away with her fashion-forward outfits (see her sexy tuxedo dress and a structured floral look she recently wore), not to mention a dazzling satin gown she wore to a Tiffany's event she attended on April 19.

What we really want to know is: Was Gwyneth comfortable not wearing underwear? Was she afraid of a possible wardrobe malfunction? How does that work, exactly?

We're not style-savvy enough to come up with answers, so Gwyneth, we tip our hats to you!

gwyneth paltrow

Check out Gwyneth's "Iron Man 3" red carpet looks:

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  • Gwyneth Paltrow

    Actress Gwyneth Paltrow arrives at the world premiere of "Marvel's Iron Man 3" at the El Capitan Theatre on Wednesday, April 24, 2013, in Los Angeles, Calif. (Photo by Jordan Strauss/Invision/AP)

  • Actress Gwyneth Paltrow attends the premiere of Walt Disney Pictures' 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

  • Actress Gwyneth Paltrow arrives at the Los Angeles Premiere 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

  • Actress Gwyneth Paltrow attends the premiere of Walt Disney Pictures' 'Iron Man 3' at the El Capitan Theatre on April 24, 2013 in Hollywood, California.

  • Gwyneth Paltrow

    Actress Gwyneth Paltrow arrives at the world premiere of Marvel's "Iron Man 3" at the El Capitan Theatre on Wednesday, April 24, 2013, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

  • Gwyneth Paltrow

    Gwyneth Paltrow attends the Iron Man 3 photocall at The Dorchester on April 17, 2013 in London, England.

  • Gwyneth Paltrow and Robert Downey Jr.

    Gwyneth Paltrow and Robert Downey Jr attend the Iron Man 3 photocall at The Dorchester on April 17, 2013 in London, England.

  • Gwyneth Paltrow

    Gwyneth Paltrow attends the Iron Man 3 photocall at The Dorchester on April 17, 2013 in London, England.

  • Gwyneth Paltrow

    U.S actress Gwyneth Paltrow poses for photographers during the Iron Man 3 premiere, in Paris, Sunday April 14, 2013.

  • Gwyneth Paltrow

    U.S actress Gwyneth Paltrow poses for photographers during the Iron Man 3 premiere, in Paris, Sunday April 14, 2013.

  • Robert Downey Jr, Gwyneth Paltrow

    U.S actors Robert Downey Jr., right and Gwyneth Paltrow, pose for photographers during the Iron Man 3 premiere, in Paris, Sunday April 14, 2013.

  • Gwyneth Paltrow

    Gwyneth Paltrow attends the 'Iron Man 3' Photocall at Hotel Bayerischer Hof on April 12, 2013 in Munich, Germany.

  • Gwyneth Paltrow

    Gwyneth Paltrow attends the 'Iron Man 3' Photocall at Hotel Bayerischer Hof on April 12, 2013 in Munich, Germany.

  • Robert Downey Jr., Gwyneth Paltrow

    U.S. actor Robert Downey Jr., right, kisses actor Gwyneth Paltrow as he arrives for a photo call to promote their new movie "Iron Man 3" in Munich, southern Germany, Friday, April 12, 2013.

  • Gwyneth Paltrow

    Gwyneth Paltrow attends the 'Iron Man 3' Photocall at Hotel Bayerischer Hof on April 12, 2013 in Munich, Germany.

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