We've dissected seven of the actress's recent looks to see what makes them tick. Consider it a master class in the art of blazer-wearing. And don't forget to click through to the end of the slideshow to shop a roundup of covetable pieces.
Tip: Who says blazers can't be black tie? Pair a tailored cream jacket with a black top and pants for an inverted take on the the classic tuxedo.
On Alba: Narcisco Rodriguez tuxedo jacket, top, and pants; Giuseppe Zanotti shoes.
Photo credit: Raymond Hall/FilmMagic
Tip: White tee and jeans? Meh. White tee, jeans, and a pretty floral blazer? Now we're talking.