Images: Getty

Sienna Miller. She’s beautiful, elegant and our latest hair envy. The British actress and model debuted her new ‘do at the London Evening Standard Theatre Awards at The London Palladium, alongside supermodel Naomi Campbell.

Her partner Tom Sturridge attended the awards with her, looking equally fancy in a top hat as the couple posed for photos. Sienna Miller’s perfectly tousled, deep-parted bob was the perfect addition to her stunning metallic lace gown.

So Myf Warhurst has a blonde bob now. 

Leave it to Sienna to be chic and effortless cool at the same time. Hmph.

Check it out here:

Take a look at some of the other celeb hairstyles that have us talking…

Who has great hair right now?

Emma Lung

Myf Warhurst

Rashida Jones

Kate Upton

Jessica Alba

Jessica Alba

Sarah Hyland

Julianne Hough

Lauren Conrad.

Lauren Conrad's bob.

Lorde.

Gwyneth Paltrow & Madonna.

Gwyneth Paltrow & Madonna.

Gwyneth Paltrow

Zoe Foster Blake.

Hilary Swank.

Tammin Sursok.

Nicole Kidman.

Ellen Page.

Cara Delevingne.

Margot Robbie.

Lauren Conrad.

Anne Hathaway.

Anne Hathaway

Anne Hathaway

Lily Collins

Kim Kardashian.

Sarah Michelle Gellar

Beyonce.

Jennifer Lawrence.

Jennifer Lawrence (via Getty).

Sienna Miller