When it comes to signature styles, Gwyneth Paltrow [1] and Jessica Simpson [2] couldn't be more different. Gwyneth's look is a mix of classic, sleek, and sexy [3]. Jessica, meanwhile, favors boho-glam ensembles both on the red carpet and in everyday life. Still, both women slid into the same Galvan jumpsuit less than a month apart, and it looked equally stunning on each of them.

Gwyneth donned the sheer-topped jumpsuit for last night's La Mer Icon event [4], pairing the look with sleek black heels and keeping her accessories to a minimum. Meanwhile, Jessica chose the same look to celebrate the 10th anniversary of the Jessica Simpson collection in September. Her embellished hoop earrings and snake ring added a little extra flash [5] to the already sexy piece. So what's so special about their outfit of choice?

The suit perfectly toes the line of sexy and sophisticated. The contrasting navy and black halves [6] meet at the narrowest part of the waist, creating a flattering line. The plunging mesh V-neck adds just the right amount of sexiness, while the sleek bottoms add length to the leg. And while a jumpsuit may not be your usual party pick, these two prove that it's the sexy look every woman could use in her wardrobe. Read on for a look at the one jumpsuit that works for any occasion, and shop a few similar styles.

Jessica Simpson

Gwyneth Paltrow

Galvan Plunge Neck Jumpsuit [7] ($1,628)

Zero Maria Cornejo Charmeuse-Back Crepe Bomber Jumpsuit-Blue [8] ($995)

Issa Jacquie satin-paneled crepe jumpsuit [9] ($695)

Vince Bi-Color Jumpsuit-Black [10] ($395)

Self Portrait Scalloped-Edge Combo Jumpsuit [11] ($505)