Leather-clad Laura Carmichael is a million miles away from her Downton Abbey alter-ego at Gregory Porter gig

She is best known as the refined Lady Edith on ITV's Downton Abbey.

But Laura Carmichael was a million miles away from her on-screen alter ego when she stepped out in London on Wednesday night. 

The British actress, 30, looked every inch the modern girl-about-town as she hit the red carpet for the Gregory Porter Magic FM performance in aid of MacMillan Cancer Support.

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Who's that girl? Laura Carmichael was a million miles away from her on-screen alter ego when she stepped out in London on Wednesday night

Who's that girl? Laura Carmichael was a million miles away from her on-screen alter ego when she stepped out in London on Wednesday night

Clearly dressing for the occasion, the TV star was in rock-chick mode as she donned her street-smart leathers. 

Sporting a pair of skinny jeans with a simple black blouse, the star was brimming with confidence at the House of St Barnabas venue.

Scraping her hair up into a messy bun, she added a flash of make-up for extra aesthetic impact. 

The British actress, 30, looked every inch the modern girl-about-town as she hit the red carpet for the Gregory Porter Magic FM performance in aid of MacMillan Cancer Support.

The British actress, 30, looked every inch the modern girl-about-town as she hit the red carpet for the Gregory Porter Magic FM performance in aid of MacMillan Cancer Support.

Not that she was the only famous face there, of course.

Strictly Come Dancing love-birds Aljaz Skorjanec and Janette Manrara were also in attendance - and seemed to follow the same dress-code.

While he ditched the obligatory dancefloor glitter for jeans and a jacket, she donned a sexy LBD which showcased her toned legs. 

Too cute: Strictly Come Dancing love-birds Aljaz Skorjanec and Janette Manrara were also in attendance - and seemed to follow the same dress-code

Too cute: Strictly Come Dancing love-birds Aljaz Skorjanec and Janette Manrara were also in attendance - and seemed to follow the same dress-code

Engaged to be married, the loved-up duo were inseparable as they made their entrance and posed for photographs
Engaged to be married, the loved-up duo were inseparable as they made their entrance and posed for photographs

Inseparable: Engaged to be married, the loved-up duo were inseparable as they made their entrance and posed for photographs

Engaged to be married, the loved-up duo were inseparable as they made their entrance and posed for photographs.

Janette and Aljaz have melted the hearts of viewers by defying the curse of Strictly, which has left at least ten celebrity romances (including the long-term relationships of newsreader Natasha Kaplinsky and rugby star Ben Cohen) in tatters since the show began 12 years ago. 

Between series, the couple spend almost every hour together, working on their dances in the gym, performing on cruises, appearing at celebrity showcases and, today, teaching on a dance weekend.  

Hit-maker: Soul star Gregory Porter took to the stage in aid of cancer charity MacMillan

Hit-maker: Soul star Gregory Porter took to the stage in aid of cancer charity MacMillan

Doing his thing: The star delivered a rousing set for the crowd in central London

Doing his thing: The star delivered a rousing set for the crowd in central London

Strike a pose: The performer was looking cool as he posed for snaps before the show

Strike a pose: The performer was looking cool as he posed for snaps before the show

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