Sheerly amazing! Jessica Alba stuns in transparent black gown for star-studded Baby2Baby Gala in Los Angeles

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She's the face of the billion dollar The Honest Company.

So it's no surprise that Jessica Alba is also on the board of Baby2baby, an ambitious charity that supports babies in need.

The 35-year-old Sin City actress wowed on the red carpet for the benefit's Gala on Saturday in Los Angeles.

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Head-turner: Jessica Alba, 35, wowed on the red carpet for the Baby2baby Gala on Saturday in Los Angeles

The always-fashionable star turned heads in a partially sheer floor-length black gown.

See-through panels showed off her decolletage, as well as the outline of her lithe legs.

Small shiny black details covered the garment, which also featured a ruffled skirt section.

Besides some small pendant earrings, the Fantastic Four star accessorized with a small, rectangular piano black clutch.

Just a glimpse: See-through panels showed off her decolletage, as well as the outline of her lithe legs

Look a sheer delight like Jessica in Valentino

Valentino Spring/Summer 2017 Ready-to-Wear collection

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The Baby2Baby gala took place in Los Angeles this weekend and several celebrities turned out to show their support for the charity event,

While a lot of ladies were in attendance, Jessica Alba managed to steal the show in a floor-sweeping sheer number by Valentino.

Maria Grazia Chiuri and Pier Paolo Piccioli are the master of red carpet gowns and we love the way they create such ethereal, delicate pieces that look wonderfully elegant on every woman.

This pick from the spring/summer 2017 collection floated effortlessly while the black hue was super flattering. Jessica made hers more modest by pairing it with a slip dress beneath, unlike the bare-all model that walked it down the runway.

You cannot shop this piece just yet, but click right to take a look at the current line at Net-a-Porter.

If you want to go sheer like Jessica, check out the line up of similar options below to help get the look.

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The details: Besides some small pendant earrings, the Fantastic Four star accessorized with a small, rectangular piano black clutch

Out and about: Of course thanks to her natural beauty, minimal make-up is always an option for Jessica, which she proved during an outing earlier in the day with her two daughters Honor and Haven

Attention: All ears were on Alba as she took to the stage

Money talks: Russell Simmons chatted with Jessica afterwards

Her mixed caramel tresses were parted in the middle and pulled back and down. 

Some natural make-up, and a slick of crimson lipstick ensured the multi-talented star was ready for the cameras.

Of course thanks to her natural beauty, minimal make-up is always an option for Jessica, which she proved during an outing earlier in the day with her two daughters Honor and Haven.

Very regal: Actress Jennifer Garner, 44, looked radiant in a navy blue sleeveless number with pleats and small fabric flowers

Ample assets: Kate Hudson, 37, put on a very busty display in a textured tan spaghetti strap dress that was also floor length

Unique: Jenna Dewan, 35, went with a complex, asymmetric, satiny pink strapless dress, that even featured a small split up the right leg

Like a disco ball! Model Molly Sims, 43, drew quite a bit of attention to her sizable baby bump thanks to a long-sleeve, knee length gold sequined dress

Happy: Hudson was all smiles as she took to the stage

balance: She was joined by Alba and Simms, the latter rocking impressively high heels with her bump

Smile! Julie Bowen grabbed Jennifer for a snap

She stepped out in a pale pink top and trouser combo, and layered a matching sweater around her shoulders. 

While Jessica is very involved with Baby2baby, many other celebs were on hand on Saturday to lend their support.

Actress Jennifer Garner, 44, looked radiant in a navy blue sleeveless number with pleats and small fabric flowers.

Fun with flowers: The O.C. star Rachel Bilson, 35, gave off pleasant vibes in a sleeveless, floral-pattern dress that flattered her svelte figure

A little of everything: Jaime King, 37, who currently stars in Hart of Dixie, chose a somewhat avant garde garment for the event

Cool as usual: Both superstar Matthew McConaughey, 47, and his lovely model wife Camila Alves, 34, made an appearance as well

Foursome: Matthew McConaughey posed with Camila along with fellow hubby and wife team of Channing Tatum and Jenna Dewan

Plas: Matthew and Jennifer shared a laugh together

Gong: Jennifer was also honoured at the event

Kate Hudson, 37, put on a very busty display in a textured tan spaghetti strap dress that was also floor length.

Jenna Dewan, 35, went with a complex, asymmetric, satiny pink strapless dress, that even featured a small split up the right leg. Her bust-line was somewhat camouflaged by a floral motif.

Model Molly Sims, 43, drew quite a bit of attention to her sizable baby bump thanks to a long-sleeve, knee length gold sequined dress. She rounded out the metallic look with some matching strappy heels.

Model figure: Camila dressed to impress in a plunging black dress with sheer panels throughout

Micing it up: Songstress Christina Aguilera, 35, donned a chic, plunging black jumpsuit for the tony event

Blondes united: Alexandra Lenas cosied up to Christina

Bachelorettes: The ladies present were all given roses

Hurray! Jessica looked particularly pleased with her flower

The O.C. star Rachel Bilson, 35, gave off pleasant vibes in a sleeveless, floral-pattern dress that flattered her svelte figure.

Jaime King, 37, who currently stars in Hart of Dixie, chose a somewhat avant garde garment for the event. The off-the-shoulder frock sported cut-outs on the arms, a sheer blue outer layer which covered a shiny black base layer.

Both superstar Matthew McConaughey, 47, and his lovely model wife Camila Alves, 34, made an appearance as well. While he went simple with a basic blue suit with a partially unbuttoned white oxford shirt, Camila dressed to impress in a plunging black dress with sheer panels throughout. 

One of a kind? Kelly went with a distinctive dark blue one-shoulder jumpsuit dress hybrid

Not too fancy: Whiz kept things simple with a textured blazer, white shirt, black trousers and black velvet oxfords

Isn't she lovely: Jennifer was also spotted with Stevie Wonder

Married: Husband and wife Dax Shepard and Kristen Bell were also in twon

Songstress Christina Aguilera, 35, donned a chic, plunging black jumpsuit for the tony event.

Other musicians were also present, including recording artist Kelly Rowland, 35, and rapper Whiz Khalifa, 29.

Kelly went with a distinctive dark blue one-shoulder jumpsuit dress hybrid, while Whiz kept things simple with a textured blazer, white shirt, black trousers and black velvet oxfords.

Sisters Sara and Erin Foster, daughters of music mogul David Foster, both looked stellar. Erin opted for a black dress with a very low neckline and white accents, while Sara chose a white frock with cutouts at the hips.

It's black and white! Sisters Sara and Erin Foster, daughters of music mogul David Foster, both looked stellar

Bird lover? Modern Family's Julie Bowen, 46, beamed in a grey strapless dress with a wildlife scene adorning the front

Flower girl: Ali Larter, 40, of Heroes fame, also embraced a natural element, as the halter neck of her dress was actually composed of a necklace of colourful flowers

More floral fashion: Kristen Bell, 36, and formerly the star of Veronica Mars also went with a halter neck number, though hers was black and knee-length

Modern Family's Julie Bowen, 46, beamed in a grey strapless dress with a wildlife scene adorning the front.

Ali Larter, 40, of Heroes fame, also embraced a natural element, as the halter neck of her dress was actually composed of a necklace of colourful flowers. She piled her trademark blonde locks on top of her head in a messy bun.

Kristen Bell, 36, and formerly the star of Veronica Mars also went with a halter neck number, though hers was black and knee-length. Several white floral prints provided accents while her silver pumps added a certain bling factor.

Contrasting colours: Hellboy actress Selma Blair, 44, was positively swamped in white and black fabric, which rippled around her in several waves. A sparkly clutch provided a bit of a reference point

Eye-catching: Kiss Kiss Bang Bang star Michelle Monaghan, 40, also chose a frock with a hard to define outline, thanks to it's extremely busy floral pattern

Busy: Samantha Ronson DJed, as she does with every celeb event

Her gig: Balthazar Getty was spotted with Co-President of Baby2Baby Kelly Sawyer Patricof

Taken: Kelly also got her hands on Jessica Alba's hubby Cash Warren

Hellboy actress Selma Blair, 44, was positively swamped in white and black fabric, which rippled around her in several waves. A sparkly clutch provided a bit of a reference point.

Kiss Kiss Bang Bang star Michelle Monaghan, 40, also chose a frock with a hard to define outline, thanks to it's extremely busy floral pattern. Ruffles at the lower arms and at the knees further obscured her figure. Red platforms complemented the warms hues nicely.

Fashion designer to the stars Rachel Zoe, 45, made a statement in an ocean inspired sheer turquoise gown, which she layered over a basic thigh-length white dress.

Creative: Fashion designer to the stars Rachel Zoe, 45, made a statement in an ocean inspired sheer turquoise gown, which she layered over a basic thigh-length white dress