Jessica Alba

Jessica Alba's sleek and shiny bob haircut. Photo: John P Iblis/jpistudios.com

'Tis the season for Hollywood celebs to switch up their hairdos!

Cher brightened up her long, dark locks with a bright orange hue, Rihanna ditched her fiery red mane and went back to her brunette roots, Kate Gosselin debuted a new shag, and now Jessica Alba has chopped off her wavy locks for a sleek, shoulder-length bob haircut.

With a dramatic center part and shiny straight strands, the 29-year-old movie star and mom showed off her new short hairstyle during the "Late Night With Jimmy Fallon" show on Monday.

We love how the length and blunt ends complement her facial features. Talk about making your eyes pop!

"New haircut tweeples -thx Renato Campora (@renatocampora)," she tweeted, giving props to her celebrity hairstylist, Renato Campora.

This is a look that screams Hollywood glam -- just in time for all of those celebrity holiday soirees and Alba's promotion of her new comedy, "Little Fockers."

Speaking of the holidays, do you know how to create the ultimate cocktail party ensemble?

Watch the video below to learn how to score a sleek, sexy bob!