Sienna Miller reveals close friend Keira Knightley is her beauty icon

Sienna Miller may be hailed as one of the world's biggest beauty icons, but the 33-year-old has revealed that she believes the title should belong to close friend and fellow actress Keira Knightley. The British actress was full of praise for Keira, who recently welcomed her first child with husband James Righton in May, describing her as 'the most beautiful woman'.


Sienna Miller has revealed that Keira Knightley is her beauty icon

It's not the first time that Sienna has expressed her admiration for the new mother, with whom she notoriously became close friends with when the pair filmed The Edge of Love together in 2009. Following the news of Keira's pregnancy, the blonde star revealed she had no doubts that Keira would be the 'perfect' mother.

"We've spoken a lot and I know she will be amazing," she told Page Six. "She doesn't need any advice. She will be perfect."

After admitting that Keira is her ultimate beauty inspiration, Sienna, who has a two-year-old daughter named Marlowe, opened up about her own beauty regime, admitting that she tries to keep it low maintenance so she can focus more on juggling her hectic work schedule and spend time with her family and fiancé Tom Sturridge.

"At home I drink a lot of still water, when I go to a restaurant I have sparkling water," she revealed.

Sienna lived up to her style icon status at the Cannes Film Festival

"It's hard, because there's just no structure to my day," the Factory Girl star continued. "With a child and my job, I have enough to do, I can't always make it to the gym. I do try to do something with my trainer Efua Baker every now and again, preferably yoga, but that's not enough of course."

While recent years have seen Sienna keep a relatively low profile since giving birth to her daughter in 2012, fans were delighted when the star made a series of appearances at the Cannes Film Festival earlier this year, where she was a juror.

Making her dazzling debut in a grey Balenciaga dress, the fashionista lived up to her reputation as a style icon, rocking ensembles that have seen her go down in history as one of the glitzy event's best-dressed attendees.