Lovely in lace! January Jones shows off decolletage in plunging black gown with saucy split at charity concert 

She is no doubt used to wearing fashions that are more on the prim side thanks to her role in Mad Men.

But on Monday January Jones showcased her assets in a plunging black gown when she attended A Concert for our Oceans in Beverly Hills.

The blonde star also gave a glimpse of her legs in the outfit, which featured a saucy split.

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On show: January Jones showcased her assets in a plunging black gown when she attended A Concert for our Oceans in Beverly Hills on Monday

On show: January Jones showcased her assets in a plunging black gown when she attended A Concert for our Oceans in Beverly Hills on Monday

Show off your sexy silhouette in Zimmermann

January Jones attended A Concert for our Oceans in Beverly Hills looking nothing short of F.A.B.U.L.O.U.S!

The 37-year-old wore a saucy black v-neck lace dress with a slight slit in the front. She paired the sexy dress with satin red pumps and kept a bare neck to show what she's working with.

We are in LOVEEEE with her black Zimmermann 'Arcadia' balconette dress. Not only is it timeless, but it's elegant and can be worn to a dinner party or a date...either way, you'll be turning heads!

Click over to Saks Fifth Avenue to snag the EXACT dress as January for $950.

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The 37-year-old Dakota native teamed her choice of garment with a pair of red pointed high heels.

Her blonde locks were in loose waves.

She kept her make-up subtle, going for a flash of pink lip gloss.

Subtle: The 37-year-old Dakota native went for a minimal make-up look for the event 

Subtle: The 37-year-old Dakota native went for a minimal make-up look for the event 

Bright: She teamed her choice of garment with a pair of red pointed high heels
Bright: She teamed her choice of garment with a pair of red pointed high heels

Bright: She teamed her choice of garment with a pair of red pointed high heels 

Firm friends: January posed on the red carpet with her Last Man On Earth co-star Mary Steenburgen

Firm friends: January posed on the red carpet with her Last Man On Earth co-star Mary Steenburgen

Long locks: Joining her on the red carpet was singer Kesha, who wore her cascading blonde hair down and out
Long locks: Joining her on the red carpet was singer Kesha, who wore her cascading blonde hair down and out

Long locks: Joining her on the red carpet was singer Kesha, who wore her cascading blonde hair down and out

The X-Men: First Class was also wearing a ring on her engagement finger, however it may have just been costume jewelry as she has recently split from her former partner Will Forte.

The mother-of-one, who recently hit the Emmys, was in good company at the event.

Joining her on the red carpet was singer Kesha, 28, who wore her cascading blonde hair down and out. 

Simply stylish: Ted star Amanda Seyfried opted for a multi-patterned shift dress

Simply stylish: Ted star Amanda Seyfried opted for a multi-patterned shift dress

Slender starlet: The 29-year-old left her slim legs on show in the frock, which she paired with green heels

Slender starlet: The 29-year-old left her slim legs on show in the frock, which she paired with green heels

Flirty: Actress Katharine McPhee wore a pretty floral frock with maroon suede heels
Flirty: Actress Katharine McPhee wore a pretty floral frock with maroon suede heels

Flirty: Actress Katharine McPhee wore a pretty floral frock with maroon suede heels

The star went for an all black ensemble, which featured a star pattern.

The glittering embroidery was woven across the sheer fabric. 

This year's A Concert for Our Oceans features Seth MacFarlane as Master of Cermonies and is part of a series to benefit Oceana.

According to its website, Oceana 'seeks to make our oceans more biodiverse and abundant by winning policy victories in the countries that govern much of the world's marine life. 

Bell of the ball: Kristen stood out in her psychedelic printed frock, with racy lace-up neckline

Bell of the ball: Kristen stood out in her psychedelic printed frock, with racy lace-up neckline

Serene in green: Vacation star Liz Gillies flaunted her porcelain skin in a lace covered mini dress
Serene in green: Vacation star Liz Gillies flaunted her porcelain skin in a lace covered mini dress

Serene in green: Vacation star Liz Gillies flaunted her porcelain skin in a lace covered mini dress

Red carpet beauty: NYPD blue star Sharon Lawrence looked great in a kimono style dress

Red carpet beauty: NYPD blue star Sharon Lawrence looked great in a kimono style dress

Leggy looks: Singer Rebekah Del Rio opted for lace while actress Katie Garfield was striking in red
Leggy looks: Singer Rebekah Del Rio opted for lace while actress Katie Garfield was striking in red

Leggy looks: Singer Rebekah Del Rio opted for lace while actress Katie Garfield was striking in red

'Oceana, founded in 2001, is the largest international advocacy organization focused solely on ocean conservation'  

Meanwhile, According to Us Weekly, January separated from Will, 45, last month.

The American actors met on set of their post-apocalyptic series The Last Man on Earth and began dating in April, after production wrapped up the show's first series.

They appeared to confirm the split when January headed to the Emmys on her own, while the Saturday Night Live star took his mother as his date. 

A star-studded affair: Laura Dern (R) was also at the concert, clad in a pretty little black dress, and she posed with Diane Lane, who sported a teal jumpsuit

A star-studded affair: Laura Dern (R) was also at the concert, clad in a pretty little black dress, and she posed with Diane Lane, who sported a teal jumpsuit

Suited up: Sam Waterston and Modern Family star Nolan Gould looked smart as they made an appearance
Suited up: Sam Waterston and Modern Family star Nolan Gould looked smart as they made an appearance

Suited up: Sam Waterston and Modern Family star Nolan Gould looked smart as they made an appearance

 

 

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