Excessive Heat Warning: Megan Fox's All-Time Sexiest Looks

In 2001, Megan Fox made her acting debut alongside — then teen queens, now sartorial royalty — Mary-Kate and Ashley Olsen in Holiday in the Sun. With her cascading raven-hued locks, piercing baby blues, and a body that just won't stop, Hollywood proved no match for Fox's dark and dangerous sexiness. In 2007, the brunette stunner solidified her bombshell status with Michael Bay's Transformers franchise, earning her the No. 1 spot as FHM's sexiest woman in 2008. Over the years, Megan has put in some serious (perfectly toned) leg work, treating us to an array of sultry red carpet fashions.

Gather some major date-night inspiration — and celebrate Megan and Brian Austin Green's third wedding anniversary — with an all-angles look at Megan's 11 most sizzling red carpet styles. You and your brothers/boyfriends/husbands can thank us later.

Megan Fox in Roberto Cavalli at the 2009 Transformers: Revenge of the Fallen Germany Premiere
Getty

Megan Fox in Roberto Cavalli at the 2009 Transformers: Revenge of the Fallen Germany Premiere

When you've got it, flaunt it. Megan wowed in a strategically skin-baring Roberto Cavalli gown in 2009.

Megan Fox in Roberto Cavalli at the 2009 Transformers: Revenge of the Fallen Germany Premiere
Getty

Megan Fox in Roberto Cavalli at the 2009 Transformers: Revenge of the Fallen Germany Premiere

Megan highlighted her gorgeous gams with an up-to-there slit.

Megan Fox in Ralph Lauren at the 2009 Golden Globes
Getty

Megan Fox in Ralph Lauren at the 2009 Golden Globes

For the '09 Globes, Megan chose a gilded Ralph Lauren slip dress detailed with ornate beading.

Megan Fox in Ralph Lauren at the 2009 Golden Globes
Getty

Megan Fox in Ralph Lauren at the 2009 Golden Globes

Emerald drop earrings and a sleek updo completed her red carpet look.

Megan Fox in Ralph Lauren at the 2009 Golden Globes
Getty

Megan Fox in Ralph Lauren at the 2009 Golden Globes

A small train elevated the gown's simple silhouette.

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance
Getty

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance

Megan's sexy Hervé Leroux LBD was anything but boring.

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance
Getty

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance

The fitted sheath featured a mesh inset and dainty cap sleeves.

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance
Getty

Megan Fox in Hervé Leroux For a 2009 Late Show With David Letterman Appearance

Megan once again proved nothing is safe from her sex appeal, including a classic LBD.

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere
Getty

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere

For the 2009 Transformers: Revenge of the Fallen LA premiere, Megan oozed Grecian goddess in an ethereal KaufmanFranco gown.

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere
Getty

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere

At first glance, one might think this look was a bit reserved for Megan, but upon further inspection . . .

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere
Getty

Megan Fox in White KaufmanFranco at the 2009 Transformers: Revenge of the Fallen LA Premiere

You spot the gown's draped peekaboo bodice.

Megan Fox in Thakoon at the 2011 Toronto International Film Festival
Getty

Megan Fox in Thakoon at the 2011 Toronto International Film Festival

Megan sizzled at the Friends With Kids Toronto premiere in a fiery ruched Thakoon creation.

Megan Fox in Thakoon at the 2011 Toronto International Film Festival
Getty

Megan Fox in Thakoon at the 2011 Toronto International Film Festival

Dalmatian Brian Atwood Mary Janes lent a spot of sass to her sexy look.

Megan Fox in Donna Karan at the 2009 Transformers: Revenge of the Fallen World Premiere
Getty

Megan Fox in Donna Karan at the 2009 Transformers: Revenge of the Fallen World Premiere

She looked absolutely regal in a satin off-the-shoulder Donna Karan — complete with her signature leg-baring slit.

Megan Fox in Donna Karan at the 2009 Transformers: Revenge of the Fallen World Premiere
Getty

Megan Fox in Donna Karan at the 2009 Transformers: Revenge of the Fallen World Premiere

The gown's delicate draping highlighted her frame flawlessly.

Megan Fox in Armani Privé at the 2011 Golden Globes
Getty

Megan Fox in Armani Privé at the 2011 Golden Globes

Megan stepped out in a custom Armani Privé gown. The silky stunner was composed of an asymmetrical Swarovski-encrusted bustier, a thigh-high slit, and a cutout back.

Megan Fox in Armani Privé at the 2011 Golden Globes
Getty

Megan Fox in Armani Privé at the 2011 Golden Globes

We were treated to a peek at her dazzling Brian Atwood pumps as she floated down the red carpet.

Megan Fox in Armani Privé at the 2011 Golden Globes
Getty

Megan Fox in Armani Privé at the 2011 Golden Globes

The back featured a cascading chiffon train.

Megan Fox in Armani Privé For Paris Fashion Week Haute Couture 2011
Getty

Megan Fox in Armani Privé For Paris Fashion Week Haute Couture 2011

A more demure Megan showed her support for Giorgio Armani, donning a dove-gray one-shoulder sheath for the designer's Armani Privé show. She completed the look with black patent peep-toes and a coordinating enamel cuff.

Megan Fox in Armani Privé For Paris Fashion Week Haute Couture 2011
Getty

Megan Fox in Armani Privé For Paris Fashion Week Haute Couture 2011

A red lip and retro coils gave her party look a Parisian-chic spin.

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere
Getty

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere

The actress hit the blue carpet in an understated KaufmanFranco LBG in 2009.

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere
Getty

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere

The gown's slinky, strappy back injected a splash of sex appeal into her otherwise classic confection.

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere
Getty

Megan Fox in Black KaufmanFranco at the 2009 Transformers: Revenge of the Fallen UK Premiere

What can we say, the girl's bringing sexy back.

Megan Fox in Dolce & Gabbana at the 2013 Golden Globes
Getty

Megan Fox in Dolce & Gabbana at the 2013 Golden Globes

Megan downplayed her dark glamour with a soft pink Dolce & Gabbana lace strapless. Sideswept curls let her Lorraine Schwartz sparklers take center stage.

Megan Fox in Dolce & Gabbana at the 2013 Golden Globes
Getty

Megan Fox in Dolce & Gabbana at the 2013 Golden Globes

A lace-paneled train floated close behind.

Megan Fox in Armani Privé at the 2010 Jonah Hex LA Premiere
Getty

Megan Fox in Armani Privé at the 2010 Jonah Hex LA Premiere

The leading lady chose a silk charmeuse Armani Privé mini for her big night. Exaggerated shoulders, a plunging neckline, and a tulip skirt gave her frock a futuristic feel.

Megan Fox in Armani Privé at the 2010 Jonah Hex LA Premiere
Getty

Megan Fox in Armani Privé at the 2010 Jonah Hex LA Premiere

Bow-detailed Brian Atwood pumps provided a girlie spin to her red-hot look.