Chelsea Clinton and her husband Marc Mezvinsky stepped out looking worlds away from their usual laid back style when they showed up front and center at Burberry's London Fashion Week show.

The former first daughter and her husband were spotted in the front row at the high-end fashion show on Saturday night as they rubbed shoulders with the likes of Sienna Miller and Keira Knightley.

The couple both dressed up in Burberry for the star-studded occasion.

A polished Clinton opted for a $1,250 high-neck green and blue top stitched dress from the British brand.

Chelsea Clinton and her husband Marc Mezvinsky were in the front row at Burberry's London Fashion Week show on Saturday night

She paired the midi dress with black pumps and a black topcoat with flared lapels.

Mezvinsky, on the other hand, looked dapper in a black coat with a white button-down shirt and blue jeans.

He also donned a pair of Burberry's black and white tartan check wool sneakers, which retail for roughly $596.

It was in stark contrast to the more casual, laid back style the pair are known for.

Clinton and Mezvinsky, who share two children together, were seated in the VIP friends and family section for designer Christopher Bailey's final show for the fashion house.

Clinton and Bailey's husband, Simon Woods, are close friends.

Clinton looked polished for the fashion show in a black topcoat with flared lapels and a fitted navy and green Burberry dress

Mezvinsky, on the other hand, looked dapper in a black coat with a white button-down shirt and blue jeans with Burberry tartan sneakers

Chelsea Clinton and her husband Marc Mezvinsky sat in the front row at Burberry's London Fashion Week show on Saturday

Mezvinsky opted to wear a pair of Burberry's black and white tartan check wool sneakers, which retail for roughly $596 for his front row appearance

'It was Simon who brought Christopher into our lives and we're so thankful for that,' Clinton told Women's Wear Daily at the star-studded fashion show.

'There was nowhere else we wanted to be tonight – and we're thrilled for Christopher.'

It seems Clinton enjoyed the LGBTQ-inspired fashion show as she was photographed with a big grin on her face while the models walked the runway.

The recently unemployed Mezvinsky, who quietly closed his hedge fund in December, must have also been enjoying the show.

He was seen pulling his wife in close for a photograph as they both laughed.

Clinton (right) said she met Burberry's designer Christopher Bailey (left) through his husband

Sienna Miller (pictured on the right with Chelsea Clinton) also attended the Burberry fashion show for London Fashion Week

'There was nowhere else we wanted to be tonight – and we're thrilled for Christopher,'Clinton said about her friend's fashion show. Clinton is pictured above sharing a laugh with Christopher Bailey

A number of other celebrities turned out for Bailey's final Burberry fashion week show.

The designer, 46, is stepping down as chief creative officer and president of the company next month.

Seated in the front row with Clinton were stars Sienna Miller, Kate Moss, Naomi Campbell, Idris Elba and his fiance Sabrina Dhowre, Zendaya, Naomi Watts, Keira Knightley, Liam Gallagher and Nicholas Hoult.

Model and actress Cara Delevingne closed the Burberry show wearing a rainbow-colored faux fur coat with a loose-fitting white ensemble.

Singer and actress Zendaya (center) also attended the Burberry London Fashion Week show. She's pictured above sitting next to TV personality Law Roach

Actor Idris Elba and his fiance Sabrina Dhowre are pictured at the Burberry London Fashion Week show

(L to R): Naomi Watts, Kate Moss and Naomi Campbell seated front row at the Burberry fashion show in London

Rapper Tinie Tempah (right) was also spotted in the front row at the Burberry show

Singers James Bay (left) and George Ezra (right) were also seen mingling with the star-studded crowd at Saturday's event

Model Cara Delevingne closed the show wearing a rainbow-colored faux fur coat and a loose-fitting white ensemble