Look of the week: Kate Beckinsale's super-elaborate braided bun
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.
Discover More Like This
BACK TO SLIDE
We know it's a bit prom-y looking, but we were intrigued by Kate Beckinsale's twist-y, braid-y bun situation at the LACMA Art + Film Gala this past weekend.
Not everyone can pull off a prim and proper updo like this one and still look cool, but we thought Kate still looked effortless and sexy, despite the very obviously non-effortless hairstyle. At the very least, this bun is worth pinning, because hey -- you never know when you're going to need a complicated, twisty updo to go with a formal dress.
Click through the gallery to see more celebrity hair inspiration.
For a more realistic hairstyle situation that still channels the essence of Kate Beckinsale's elaborate bun, watch the video below.