Jessica Alba is one of Hollywood's classic beauties, and she continues to stun us with her red carpet style. Alba turns 32 on April 28th, and has been a very busy lady over the past few years.

Aside from being an actress in blockbuster movies like "Sin City," the "Fantastic Four" movies and "Valentine's Day" (oh, and our favorite throwback: "Never Been Kissed" -- who doesn't love that movie?!), Jessica is a wife, mother to daughters Honor and Haven, and businesswoman. She launched The Honest Company in January 2012, which offers non-toxic, high-performing family products such as supplies for your baby, bath and body, and cleaning, plus so much more.

Just released in March 2013, Jessica's book The Honest Life: Living Naturally and True to You received rave reviews, and has been called "eye-opening," "inspiring" and a "godsend." Hot off her book's success, she will appear in "Sin City: A Dame to Kill For" later this year.

Through the years, Jessica's style has stayed fairly consistent, always embracing the fashion of the moment while remaining unabashed when it comes to taking risks. A woman truly of her own style, we loved taking a look back. Click through the gallery to see her style transformation, and be sure to wish Jessica a very happy birthday!