Style File: Jessica Alba

In honor of Jessica Alba's 28th birthday, we're taking a look back at how her style has changed over the years. Whether she's red carpet glam, or laid-back mami, the actress has impeccable style. Just see for yourself...

1. Alba Style File: Early Adventures

Early Adventures: Jessica proves that she can be beautiful and daring. At the 2003 Teen Choice Awards, she wore an unusual pair of cargo jeans. And she threw convention out the window when she stepped out in this black and white printed mini dress and over the knee boots at Step-Up's Fourth Annual "Fashion Forward" Luncheon in 2004.

2. Alba Style File: White Out

White Out: Jessica may sacrifice color, but never style when dressing for the red carpet. She wore an all white three piece suit with matching point toe heels at the 59th Annual Golden Globe Awards in 2002. At the premiere of Into the Blue in 2005, she paired a strapless white flared cocktail dress with red pointy toe heels. In 2006, she looked classic in a white button up and white wide leg trousers at MTV Networks 2006 Upfront: Feed The Need.

3. Alba Style File: Avant Garde

Avant Garde: Alba has proven on several occasions that she is not afraid to be bold in her fashion choices. At a Madrid Fantastic Four premiere in 2005, she wore a black and white one sleeved dress with black peep toes. More recently, Jessica experimented with an assymetrical RM Roland Mourant black cocktail dress at the 2009 Vanity Fair Oscar Party and a red and black Narciso Rodriguez one strapped dress at 2009 American Museum of Natural History's Museum dance.

4. Alba Style File: Red Hot

Red Hot: Jessica often chooses hot shades of crimson when she wants to stand out. At the Japan premiere of Fantastic Four in 2005, she wore a pleated scoopneck dress and black peep toes. She wore an Alexander McQueen red strapless dress with loose waves and black peep toe maryjanes at the 2007 Movie Awards. She attended the launch of her 2009 Campari Calendar in a sculptural Dolce and Gabbana dress with bold red lips, bold blunt bangs, and statement-making red platform sandals.

5. Alba Style File: The Oscars

The Oscars: Jessica doesn't mess around when dressing for Hollywood's biggest night. At the 78th Annual Academy Awards in 2006, she was a golden goddess in a lace-detailed Versace gown and a loose updo. With a barely visible baby bump, she was enchanting in a deep purple strapless Marchesa feathered gown and braided hairstyle at the 80th Annual Academy Awards in 2008.

6. Alba Style File: Shades of Yellow

Shades of Yellow: Jessica shows us how versatile this sunny color can be. At the 19th Annual Kid's Choice Awards in 2006, she paired a ruffled Corey Lynn Calter peasant blouse with a belt and flared jeans. She was stunning in her golden Gucci gown at the London premiere of Fantastic Four: Rise of the Silver Surfer in 2007. Also in 2007, she wore a comfy strapless Yigal Azrouel dress with white platform sandals to the Teen Choice Awards.

7. Alba Style File: Retro Glamour

Retro Glamour: Jessica takes cues from the screen sirens of the past by pairing curve-hugging black dresses with retro hairstyles and makeup. During the 58th International Cannes Film Festival in 2005, she wore a slimming black column gown with a diamond necklace and a sleek updo at the screening for Sin City. At the 2007 ALMA Awards, she paired a vintage scoopneck black dress with bold lips and retro waves. She wore a sexy Roberto Cavalli cutout dress with red lips at the Berlin premiere of Fantastic Four: Rise of the Silver Surfer in 2007.

8. Alba Style File: Pastel Perfection

Pastel Perfection: Since giving birth to daughter Honor Marie, Jessica has been choosing softer colors for red carpet events. For her first major appearance after giving birth, she wore a pale pink Narciso Rodriguez gown to the 2008 ALMA Awards in August. She paired a pair of high-waisted purple pants with a white ruffled button up and suede platforms at a Pre-Golden Globes Luncheon in January. At the 2009 Film Independent Spirit Awards in February, she looked lovely in a Dior lilac bustier dress.