Kate Beckinsale's twist-y bun at the 2014 LACMA Art + Film Gala.
Emma Stone attends the premiere of 'Birdman' during the New York Film Festival.
Selena Gomez rocked a sleek bun at the 'Rudderless' premiere in Los Angeles.
We're calling it now -- the middle-parted bob, like this one on Rose Byrne, is the going to be the hottest hair look of the season.
Chloe Grace Moretz's swept-up, no frills bun at the Toronto International Film Festival this week.
Gwen Stefani's straight and sleek midi bob at the Emmy Awards.
Nina Dobrev's messy braid at the 2014 Teen Choice Awards.
Julianne Hough arrives at the Los Angeles Premiere 'Let's Be Cops', sporting a platinum pixie bob.
Jessica Alba's deep side part during the press tour for her new movie, 'Frank Miller's Sin City: A Dame To Kill For', during Comic-Con.
Kate Bosworth's gorgeous braided updo at the Style Thief app launch at the Chateau Marmont in Los Angeles.
Diane Kruger's double braid situation at the red carpet premiere of "The Bridge".
Olivia Wilde at a movie premiere in NYC.
Alessandra Ambrosio rocks a ponytail underneath her Panama hat at an amusement park in Los Angeles.
Jennifer Lawrence stepped out in NYC with a grown-out pixie cut.
Katie Holmes out and about in NYC -- with bangs!
Catherine, Duchess of Cambridge shows off her ponytail during the royal tour in New Zealand.
Kate Upton sports a sexy, voluminous updo at the UK Gala premiere of 'The Other Woman' in London.
Nina Dobrev sports a hair bow at the 2014 PaleyFest.
Emma Stone goes red again at The Amazing Spider-Man 2 photo call in Sydney, Australia.
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Jessica Alba is never afraid of a trend, which is probably why she looks so good when she sports one -- confidence is key, after all. The actress, mom, and Honest Company founder showed up at Comic-Con in San Diego this week, for the West Coast leg of her Sin City: Dame to Kill For press tour. Dressed in a Tanya Taylor cropped top and Zimmermann midi skirt, Jessica showed off an enviable tan, and an even cooler hairstyle.
Joined by decidedly edgier co-star Rosario Dawson, who rocks a Skrillex-style half-shave look, Jess sported a complementary hair look. It looks like a deep side part from the front, but there's an awesome braid running down the right side of Jessica's head. It's a cute, playful look for summer -- no head shaving necessary! As for everyone else who showed up to Comic-Con...well, we'll let you decide on that one!
Fore more celebrity hair looks we love, click through the gallery.
The creepiest, coolest, and weirdest fan costumes at Comic-Con 2014