Colin Firth and wife Livia attend Met Gala 2 months after revealing her affair

Colin Firth and wife Livia are showing a united front.

The couple attended the 2018 Met Gala in New York City on Monday, posing for pictures together on the red carpet. The high-profile outing comes after Livia revealed in March that she once had an affair with Italian journalist Marco Brancaccia, whom she alleges then began stalking her. Brancaccia has denied the claims.

Colin, 57, looked handsome in a black tuxedo on Monday, while Livia, 48, sported a white high-neck cape gown in line with the night's theme, Heavenly Bodies: Fashion and the Catholic Imagination.  She completed the look with eye-catching green accessories.

36 PHOTOS
Colin Firth and wife Livia Giuggioli together
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Colin Firth and wife Livia Giuggioli together
NEW YORK, NY - MAY 07: Colin Firth and Livia Giuggioli attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Matt Winkelmeyer/MG18/Getty Images for The Met Museum/Vogue)
NEW YORK, NY - MAY 07: Colin Firth and Livia Giuggioli attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Dia Dipasupil/WireImage)
NEW YORK, NY - MAY 07: Colin Firth and Livia Firth attend 'Heavenly Bodies: Fashion & the Catholic Imagination', the 2018 Costume Institute Benefit at Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Taylor Hill/Getty Images)
NEW YORK, NY - MAY 04: Livia Firth and Colin Firth attend a screening of the 'Forever Tasmania' documentary at The New York Edition on May 4, 2018 in New York City. (Photo by Ben Gabbe/Getty Images for Eco-Age)
NEW YORK, NY - MAY 04: Livia Firth and Colin Firth attend a screening of the 'Forever Tasmania' documentary at The New York Edition on May 4, 2018 in New York City. (Photo by Ben Gabbe/Getty Images for Eco-Age)
Cast member Colin Firth arrives with his wife Livia Giuggioli for the world premiere of "Kingsman: The Golden Circle" in London, Britain September 18, 2017. REUTERS/Eddie Keogh
Colin Firth and his wife Livia pose as they arrive for the gala screening of the film "Nocturnal Animals" during the 60th British Film Institute (BFI) London Film Festival at Leicester Square in London, Britain October 14, 2016. REUTERS/Hannah McKay
Actor Colin Firth (R) and his wife Livia (L) attend the red carpet for the movie "Franca: Chaos and Creation" at the 73rd Venice Film Festival in Venice, Italy September 2, 2016. REUTERS/Alessandro Bianchi
Actor Colin Firth and his wife Livia pose as they arrives at the "Green carpet Fashion Awards" event during the Milan Fashion Week in Milan, Italy, September 24, 2017. REUTERS/Stefano Rellandini
British actor Colin Firth (L) joins his wife Livia Firth at a London Fashion Week cocktail reception in London September 13, 2012. The reception was for Livia Firth's Green Cut initiative to promote environmentally sustainable fashion. REUTERS/Suzanne Plunkett (BRITAIN - Tags: FASHION ENTERTAINMENT)
British actor Colin Firth (L) joins his wife Livia Firth at a London Fashion Week cocktail reception in London September 13, 2012. The reception was for Livia Firth's Green Cut initiative to promote environmentally sustainable fashion. REUTERS/Suzanne Plunkett (BRITAIN - Tags: FASHION ENTERTAINMENT)
Actor Colin Firth (L) and his wife Livia Giuggioli arrive at the 2012 Vanity Fair Oscar party in West Hollywood, California February 26, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-PARTIES)
Actor Colin Firth and his wife Livia Giuggioli arrive at the 84th Academy Awards in Hollywood, California, February 26, 2012. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)
Actor Colin Firth and his wife Livia Giuggioli arrives for the British Academy of Film and Arts (BAFTA) awards ceremony at the Royal Opera House in London February 12, 2012. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT) (BAFTA-ARRIVALS)
Actor Colin Firth and his wife Livia Giuggioli arrive at the 69th annual Golden Globe Awards in Beverly Hills, California January 15, 2012. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT) (GOLDENGLOBES-ARRIVALS)
Colin Firth and Livia Guiggiani attend the UK premiere of "The Debt" in London, September 21, 2011. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT)
Actor Colin Firth and his wife Livia Giuggioli pose for photographers as they arrive on the "Tinker, Tailor, Soldier, Spy" red carpet at the 68th Venice Film Festival September 5, 2011. REUTERS/Alessandro Bianchi (ITALY - Tags: ENTERTAINMENT)
Cast member Colin Firth (C) arrives with his wife Livia Giuggioli for the screening of the film "Tinker, Tailor, Soldier, Spy" at the 68th Venice Film Festival September 5, 2011. REUTERS/Eric Gaillard (ITALY - Tags: ENTERTAINMENT TPX IMAGES OF THE DAY)
Film producer Livia Giuggioli and her husband actor Colin Firth arrive at the Metropolitan Museum of Art Costume Institute Benefit celebrating the opening of the exhibition "Alexander McQueen: Savage Beauty" in New York May 2, 2011. REUTERS/Eric Thayer (UNITED STATES - Tags: ENTERTAINMENT FASHION)
British actor Colin Firth (L) holds his Oscar he won for best actor for his role in "The King's Speech" as he arrives with his wife Livia Giuggioli at the 2011 Vanity Fair Oscar party in West Hollywood, California February 27, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: ENTERTAINMENT IMAGES OF THE DAY) (OSCARS-PARTY)
British actor Colin Firth, best actor nominee for his role in "The King's Speech," and his wife, Livia Giuggioli, arrive at the 83rd Academy Awards in Hollywood, California, February 27, 2011. REUTERS/Lucas Jackson (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)
British actor Colin Firth, best actor Oscar winner for his role in "The King's Speech," hugs his wife Livia Giuggioli during the 83rd Academy Awards in Hollywood, California, February 27, 2011. REUTERS/Gary Hershorn (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-SHOW)
British actor Colin Firth, best actor nominee for his role in "The King's Speech," and his wife Livia Giuggioli arrive at the 83rd Academy Awards in Hollywood, California, February 27, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS)
British actor Colin Firth, best actor nominee for his role in "The King's Speech," and his wife Livia Giuggioli arrive at the 83rd Academy Awards in Hollywood, California, February 27, 2011. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENTERTAINMENT) (OSCARS-ARRIVALS) )
Actor Colin Firth (L) and his wife Livia popse for photographers as they arrive for the London Film Critics' Circle Awards in London, February 10, 2011. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT SOCIETY)
British actor Colin Firth poses with wife, Italian film producer Livia Giuggioli during the unveiling of his star on the Hollywood Walk of Fame in Hollywood, California January 13, 2011. REUTERS/Fred Prouser (UNITED STATES - Tags: ENTERTAINMENT)
British actor Colin Firth, best actor nominee for "A Single Man," and his wife Livia Giuggioli arrive at the 82nd Academy Awards in Hollywood, March 7, 2010. REUTERS/Mario Anzuoni (UNITED STATES) (OSCARS-ARRIVALS - Tags: ENTERTAINMENT)
British actor Colin Firth and his wife Livia arrive at the 25th annual Film Independent Spirit Awards in Los Angeles, March 5, 2010. REUTERS/Lucas Jackson (UNITED STATES - Tags: ENTERTAINMENT)
British actor Colin Firth and his wife Livia Giuggioli arrive at the British Academy Of Film and Television Arts (BAFTA) awards ceremony at the Royal Opera House in London February 21, 2010. REUTERS/Toby Melville (BRITAIN - Tags: ENTERTAINMENT)
British actor Colin Firth (R) from the film "A Single Man" and his wife Livia Giuggioli arrive at The Weinstein Company Golden Globes after party after the 67th annual Golden Globe Awards in Beverly Hills, California January 17, 2010. REUTERS/Danny Moloshok (GOLDENGLOBES-PARTIES) (UNITED STATES - Tags: ENTERTAINMENT)
Actors Colin Firth and Livia Guiggioli (L) arrive at the gala presentation for the film "A Single Man" at the 34th Toronto International Film Festival in Toronto September 14, 2009. REUTERS/Mike Cassese (CANADA ENTERTAINMENT)
British actor Colin Firth and his wife Livia Giuggioli pose as they arrive for the world premiere of "Mamma Mia" at Leicester Square in London June 30, 2008. REUTERS/Dylan Martinez (BRITAIN)
Britain's actor Colin Firth (R) and his wife, Italian producer Livia Giuggioli, arrive for the White House Correspondents' Association Dinner in Washington April 26, 2008. REUTERS/Mike Theiler (UNITED STATES)
British actor Colin Firth and his wife Livia Giuggioli pose as they arrive for the world premiere of "Mamma Mia" at Leicester Square in London June 30, 2008. REUTERS/Dylan Martinez (BRITAIN)
British actor Colin Firth (R) and his wife Livia Giuggioli of Italy arrive at the UK premiere of 'Bridget Jones: The Edge of Reason' at the Odeon Leicester Square in London November 9, 2004. The film is the sequel to 'Bridget Jones's Diary'. REUTERS/Toby Melville MD
Actor Colin Firth and wife Livia Giuggioli pose for photographers during red carpet arrivals at the Oxfam annual fundraiser in Beverly Hills, November 29, 2006. REUTERS/Gus Ruelas (UNITED STATES)
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Colin and Livia have been married for nearly 21 years, and have two teenage sons together, Luca and Matteo. In March, the couple sent out a statement obtained by ET revealing Livia's relationship with Brancaccia, after she claimed in an Italian court case that he began stalking her after she ended their affair.

"For obvious reasons, the Firths have never had any desire to make this matter public," the statement read. "A few years ago Colin and Livia privately made the decision to separate. During that time Livia briefly became involved with former friend Mr. Brancaccia. The Firths have since reunited."

"Subsequently, Mr. Brancaccia carried out a frightening campaign of harassment over several months, much of which is documented," the statement continued. "As a consequence of his stalking, threats and refusal to desist, the legal complaint was lodged with the Italian authorities. The reporting this week on this case is understood to be the consequence of a leaked court document. This is greatly to be regretted. It does not serve the interests of any of the parties involved."

Brancaccia denied the accusation to The Times, and alleged that Livia was lying to hide their relationship that is said to have occurred between 2015 and 2016. 

"[Livia] wanted to leave Colin for me," he claimed to the British newspaper. “My ‘stalking’ consisted of two messages via WhatsApp after she ended our relationship in June 2016, and an email. I wrote an email to Colin about my relationship with Livia, which I now regret sending, and she filed a complaint against me for stalking out of fear that I could go public with what she had revealed to me about her marriage and work."

“In a year she sent me hundreds of messages of love, photos and videos, even a diary,” he also claimed. 

15 PHOTOS
Met Gala 2018: Couples take the red carpet
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Met Gala 2018: Couples take the red carpet
NEW YORK, NY - MAY 07: Hugh Jackman and Deborra-Lee Furness attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Dia Dipasupil/WireImage)
Amal Clooney and her husband actor George Clooney arrive for the 2018 Met Gala on May 7, 2018, at the Metropolitan Museum of Art in New York. - The Gala raises money for the Metropolitan Museum of Art Costume Institute. The Gala's 2018 theme is Heavenly Bodies: Fashion and the Catholic Imagination'. (Photo by Angela WEISS / AFP) (Photo credit should read ANGELA WEISS/AFP/Getty Images)
NEW YORK, NY - MAY 07: Gary Oldman and Gisele Schmidt attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Neilson Barnard/Getty Images)
NEW YORK, NY - MAY 07: Gary Oldman and Gisele Schmidt attend 'Heavenly Bodies: Fashion & The Catholic Imagination' Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Karwai Tang/Karwai Tang/Getty Images)
NEW YORK, NY - MAY 07: Colin Firth and Livia Giuggioli attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images)
NEW YORK, NY - MAY 07: Cole Sprouse and Lili Reinhart attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by John Shearer/Getty Images for The Hollywood Reporter)
NEW YORK, NY - MAY 07: Thomas Sadoski and Amanda Seyfried attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Matt Winkelmeyer/MG18/Getty Images for The Met Museum/Vogue)
NEW YORK, NY - MAY 07: Jill Goodacre and Harry Connick Jr. attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images)
NEW YORK, NY - MAY 07: 2 Chainz attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Neilson Barnard/Getty Images)
NEW YORK, NY - MAY 07: Lynda Carter (R) attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Kevin Mazur/MG18/Getty Images for The Met Museum/Vogue)
Robert Kraft (L) and Ricki Noel Lander arrive for the 2018 Met Gala on May 7, 2018, at the Metropolitan Museum of Art in New York. - The Gala raises money for the Metropolitan Museum of Arts Costume Institute. The Gala's 2018 theme is Heavenly Bodies: Fashion and the Catholic Imagination. (Photo by Hector RETAMAL / AFP) (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)
NEW YORK, NY - MAY 07: Hailey Baldwin and Shawn Mendes attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Mike Coppola/MG18/Getty Images for The Met Museum/Vogue)
Doutzen Kroes (L) and a guest arrive for the 2018 Met Gala on May 7, 2018, at the Metropolitan Museum of Art in New York. (Photo by Hector RETAMAL / AFP) (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)
Kris Jenner and Corey Gamble arrive for the 2018 Met Gala on May 7, 2018, at the Metropolitan Museum of Art in New York. - The Gala raises money for the Metropolitan Museum of Arts Costume Institute. The Gala's 2018 theme is Heavenly Bodies: Fashion and the Catholic Imagination. (Photo by Angela WEISS / AFP) (Photo credit should read ANGELA WEISS/AFP/Getty Images)
NEW YORK, NY - MAY 07: Tom Brady and Gisele Bundchen attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images)
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