Sienna Miller looks elegant in white dress and black coat as she arrives at at St Paul’s Cathedral in London

Sienna Miller wrapped up warm as she arrived at St Paul’s Cathedral in London on Tuesday.

The actress, 42, looked typically classy as she arrived at the church in the capital for the Blood Cancer UK carol concert.

Under her long black coat, she opted for a white dress and completed the look with a pair of eye-catching snakeskin boots. 

The American Sniper star displayed her glowing complexion and wore a slick of bright red lipstick for the occasion.

Sienna let her blonde locks flow free for the evening, and looked in great spirits as she slung a crimson bag over her shoulder. 

The blonde beauty has been in a relationship with Oli Green for just over three years, and he arrived arm-in-arm with Sienna’s mother to support her.  

The actress, 42, looked typically classy as she arrived at the religious landmark in the capital for the Blood Cancer UK carol concert

Once inside, Sienna removed her coat and looked a vision in white as she stood up to give a reading. 

Her gown went all the way down to the floor and  then soon joined a host of other famous faces at the charitable event.

She was sat with comedienne Chizzy Akudolu, who opted for an striking blue and purple dress.

On the other side was former journalist and Tony Blair’s advisor Alastair Campbell.

Other stars to make an appearance included acting veteran Timothy Spall, and singer Natalie Rushdie, who was a close friend of Dame Deborah James. 

The outing comes just days after Sienna attended St George’s Church for the Story of Christmas Appeal last night in Hanover Square, London.

The Story of Christmas was founded in 1987 and is an annual Christmas charity event supported by the property and construction industries. 

Under her long black coat, she opted for a white dress and completed the look with a pair of eye-catching snakeskin boots

The blonde beauty has been in a relationship with Oli Green for just over three years, and he arrived arm-in-arm with Sienna’s mother Jo to support her

Once inside, Sienna removed her coat and looked a vision in white as she stood up to give a reading

The stars enjoyed performances from the Band & Fanfare Trumpeters of the Scots Guards and the Choir of Westminster Cathedral. 

Celebrity readers included Rowan Atkinson, Simon Callow, Victoria Coren Mitchell, Benedict Cumberbatch, Rupert Everett and Aled Jones.

The congregation also heard from Ian Hislop, The Lord Bishop of London, Sienna Miller, James Norton, David Mitchell, Hussina Raja, Sophie Raworth, Julia Sawalha, Adrian Scarborough, Dan Snow and Kate Winslet.