Robbie Williams and his wife Ayda Field hold hands during London stroll as they're seen publicly for the first time since sexual harassment accusations

As embattled Robbie Williams and his wife Ayda Field face a sexual harassment lawsuit filed against them by a former employee, the couple are putting on a united front.

The former Take That singer and his actress wife were spotted sporting sombre expressions as they strolled hand-in-hand through the streets of Notting Hill, west London, on Wednesday.

Hiding their eyes behind sunglasses, the couple stepped out on a sunny spring day in the English capital, days after their lawsuit from former assistant, Gilles De Bonfilhs, came to light.

Scroll down for video 

United: Robbie Williams and his wife Ayda Field were spotted in Notting Hill, west London, on Wednesday

United: Robbie Williams and his wife Ayda Field were spotted in Notting Hill, west London, on Wednesday

Sporting bleach blonde hair, Robbie cut a dapper figure in a fitted grey suit and a black top, which he teamed with on-trend brown tasselled loafers.

Brunette Ayda, meanwhile, looked decidedly more casual in a white BOY London sweater with black cropped leggings and matching trainers.

Gilles De Bonfilhs, a former aide to the star couple, has accused mother-of-two Ayda of walking around in various states of undress and asking him to comment on her body.

Lawsuit: The couple were spotted for the first time since a former employee filed a sexual harassment lawsuit against them

Lawsuit: The couple were spotted for the first time since a former employee filed a sexual harassment lawsuit against them

Accusations: Gilles De Bonfilhs, a former aide to the star couple, has accused mother-of-two Ayda of walking around in various states of undress and asking him to comment on her body

Accusations: Gilles De Bonfilhs, a former aide to the star couple, has accused mother-of-two Ayda of walking around in various states of undress and asking him to comment on her body

It is also alleged the 35-year-old quizzed him on his sex life and shared intimate details about her sex life.

However, a representative for the couple has dismissed the claims as being ‘entirely without substance’ and stated that they will be ‘strenuously defended’.

Gilles, who worked for the pair between October 2014 and January 2015 is suing both Robbie, 41, and his wife, although there are no allegations listed against Robbie in the lawsuit filed in Los Angeles, according to TMZ.

Denied: A spokesperson for the couple has dismissed the claims as being ¿entirely without substance¿

Denied: A spokesperson for the couple has dismissed the claims as being ‘entirely without substance’

Dismissed: The personal assistant was dismissed in January for ¿serious misconduct¿, according to a spokesman for the couple

Dismissed: The personal assistant was dismissed in January for ‘serious misconduct’, according to a spokesman for the couple

The former employee claims his contract was ‘wrongfully terminated’ and is reportedly asking the court to award him damages in excess of $25,000.

The personal assistant was dismissed in January for ‘serious misconduct’, according to a spokesman for the couple.

Singer Robbie married Ayda in 2010 in the grounds of his Beverly Hills, California, mansion after four years together.

Legal woes: While there are no allegations against Robbie, he has been sued along with his wife

Legal woes: While there are no allegations against Robbie, he has been sued along with his wife

Wedded bliss: Robbie wed Ayda in 2010 in the grounds of his Beverly Hills mansion after four years together

Wedded bliss: Robbie wed Ayda in 2010 in the grounds of his Beverly Hills mansion after four years together