Victoria Beckham admits she feels 'a bit left out' of Spice Girls reunion, but 'definitely' won't join tour

Victoria Beckham will always be Posh Spice. 

In an interview with The Guardian published on Saturday, the 44-year-old fashion designer opened up about her decision not to join the Spice Girls on their upcoming tour, and admitted that she'll feel "a bit left out" when she sees them all together in concert. 

Geri Horner, Emma Bunton, Melanie Brown and Melanie Chisholm announced in November that they'd be hitting the road for a string of shows in the U.K. later this year, sans Beckham

"I'm sure when I'm there and they are on stage, there will be a part of me that feels a bit left out," the mother of four told The Guardian. "Because even after all this, a part of me will always be a Spice Girl." 

Regardless of her bit of FOMO, Beckham said she "definitely" won't make a cameo appearance on stage. "What I do now is my passion and a full-time job," she explained, adding that it wasn't a difficult decision "at all" to skip out on the tour. "I'm excited to see it, though." 

17 PHOTOS
Spice Girls through the years
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Spice Girls through the years
Victoria Beckham, Mel C, Emma Bunton, Geri Halliwell and Mel B from The Spice Girls (Photo by Jeff Kravitz/FilmMagic)
Geri Halliwell and Victoria Beckham pose for a photo shoot at the Four Seasons Hotel on April 29, 1997 in Kuta, Bali, Indonesia. (Photo by John Stanton/WireImage)
UNITED STATES - SEPTEMBER 04: The Spice Girls attending the 1997 MTV Video Music Awards, NYC. 09/04/1997 (Photo by Vinnie Zuffante/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 16: A young girl holds the Spice Girls dolls which were unveiled at the Toy Retailers Fair in London by the Character Group which has exclusive rights to distribute the dolls in the UK 16 October. (Photo credit should read JOHNNY EGGITT/AFP/Getty Images)
Paris, FRANCE: (FILES) File photo dated 16 December 1997 shows the Spice Girls posing at a hotel in Paris. Pop group the Spice Girls announced 28 June 2007 they are to reform for a world tour, saying 'girl power is back and stronger than ever,' in a statement posted on their website. AFP PHOTO THOMAS COEX (Photo credit should read THOMAS COEX/AFP/Getty Images)
INDIANAPOLIS, UNITED STATES - 1998: L to R Melanie Brown, Melanie Chisholm, Emma Bunton and Victoria Adams from the Spice Girls in Indianapolis celebrating their hit 'Viva Forever' reaching number 1. (Photo by Dave Hogan/Getty Images)
L-R Mel C (Melanie Chisolm), Geri Halliwell, Emma Bunton, Mel B (Melanie Brown), Victoria Adams of the Spice Girls pose for a studio group portrait in 1998 in Birmingham, United Kingdom. (Photo by Mike Prior/Redferns)
Portrait of UK pop group The Spice Girls (Victoria Beckham, Melanie Brown, Emma Bunton, Melanie Chisholm and Geri Halliwell) photographed in London in 1998. Job: 34206 Ref: SDD - Non-Exclusive - World Rights Only (Photo by Steve Brown/Photoshot/Getty Images)
Melanie Chisholm, Geri Halliwell, Victoria Beckham, Emma Bunton, and Melanie Brown of the Spice Girls (Photo by Jim Smeal/WireImage)
NEW YORK CITY - JANUARY 14: Pop group Spice Girls: 'Posh Spice' Victoria Adams, 'Scary Spice' Melanie Brown, 'Baby Spice' Emma Bunton, 'Ginger Spice' Geri Hallliwell and 'Sporty Spice' Melanie Chisholm promote their new movie 'Spice World' on January 14, 1998 at Planet Hollywood in New York City. (Photo by Ron Galella, Ltd./WireImage)
UNITED KINGDOM - FEBRUARY 10: BRIT AWARDS, LONDON ARENA Photo of SPICE GIRLS, Group portrait L-R Melanie Brown (Mel B), Victoria Adams (Beckham), Geri Halliwell, Emma Bunton and Melanie Chisholm (Mel C) (Photo by JMEnternational/Redferns)
UNITED KINGDOM - FEBRUARY 10: BRIT AWARDS, EARLS COURT Photo of SPICE GIRLS, Group performing live on stage L-R Melanie Chisholm (Mel C), Geri Halliwell, Victoria Adams (Beckham), Emma Bunton and Melanie Brown (Mel B) (Photo by Mick Hutson/Redferns)
UNITED KINGDOM - APRIL 01: WEMBLEY ARENA Photo of SPICE GIRLS, Group performing live on stage Spiceworld tour L-R Melanie Chisholm (Mel C), Geri Halliwell, Victoria Adams (Beckham), Emma Bunton and Melanie Brown (Mel B) (Photo by Mick Hutson/Redferns)
LONDON, UNITED KINGDOM: The Spice Girls pop group pose for photographs next to their life-size wax models at Madame Tussaud's Rock Circus in Piccadilly 17 December 1999 in London. (From L) Scary, Posh, Sporty and Baby are the first pop band combo to be modelled since the Beatles in 1964. (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)
LONDON - DECEMBER 15: Sarah Ferguson with daughters Eugene and Beatrice pose with The Spice Girls on December 15, 1999 at Earls Court, London. (Photo by Dave Hogan/Getty Images)
Spice Girls in New York City, New York (Photo by RJ Capak/WireImage)
UNITED KINGDOM - DECEMBER 13: HEATHROW AIRPORT Photo of SPICE GIRLS and Victoria BECKHAM and Geri HALLIWELL and Mel B and Melanie BROWN and Emma BUNTON and Mel C and Melanie CHISOLM, L-R: Victoria Beckham, Geri Halliwell, Mel B (Melanie Brown), Emma Bunton, Mel C (Melanie Chisolm) posed, group shot, at opening of Virgin Terminal 5 (Photo by Stuart Mostyn/Redferns)
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A source told ET in November that Beckham wouldn't be taking part in the reunion because "she has a family to look after and a business to run."

In Saturday's interview, the former singer opened up about learning to raise her children -- 19-year-old Brooklyn, 16-year-old Romeo, 13-year-old Cruz and 7-year-old Harper -- in the spotlight. Beckham confessed that when her kids were little, she used to tell them that photographers followed them around because their grandparents missed them and wanted to see pictures of them.  

“It was a way of explaining it to them when they were too young to understand. They are used to it now. They’ve all grown up with it. They understand that they have to act in a responsible way because of it," she said. "But they will make mistakes -- we all do. And theirs will be in the public eye.” 

Beckham also addressed the constant rumors about her nearly 20-year marriage to David, admitting that sometimes, she can't help but let it affect her. 

“It can get quite frustrating,” she said. “But I leave it to my PR team. I don’t get involved.” 

“People are interested in my personal life. And sometimes that works in my favor and sometimes it’s things that I don’t like. I’m not going to let it get me down," Beckham explained. 

18 PHOTOS
Victoria Beckham out and about
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Victoria Beckham out and about
WINDSOR, ENGLAND - JUNE 27: Victoria Beckham attends the Argento Ball for the Elton John AIDS Foundation in association with BVLGARI & Bob and Tamar Manoukian on June 27, 2018 in Windsor, England. (Photo by David M. Benett/Dave Benett/Getty Images for BVLGARI and EJAF)
WINDSOR, ENGLAND - JUNE 27: Brooklyn Beckham (L) and Victoria Beckham attend the Argento Ball for the Elton John AIDS Foundation in association with BVLGARI & Bob and Tamar Manoukian on June 27, 2018 in Windsor, England. (Photo by David M. Benett/Dave Benett/Getty Images for BVLGARI and EJAF)
PARIS, FRANCE - JUNE 24: Victoria Beckham is seen on June 24, 2018 in Paris, France. (Photo by Marc Piasecki/GC Images)
PARIS, FRANCE - JUNE 23: Victoria Beckham is seen on June 23, 2018 in Paris, France. (Photo by Marc Piasecki/GC Images)
PARIS, FRANCE - JUNE 23: Victoria Beckham attends the Dior Homme Menswear Spring/Summer 2019 show as part of Paris Fashion Week on June 23, 2018 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)
PARIS, FRANCE - JUNE 22: Victoria Beckham arrives at her hotel on June 22, 2018 in Paris, France. (Photo by Pierre Suu/GC Images)
NEW YORK, USA - JUNE 19: Victoria Beckham attends the Forbes Women's Summit 2018 in New York, United States on June 19, 2018. (Photo by Mohammed Elshamy/Anadolu Agency/Getty Images)
NEW YORK, NY - JUNE 19: Victoria Beckham seen out in Manhattan on June 19, 2018 in New York, NY. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - JUNE 19: Victoria Beckham seen out in Manhattan on June 19, 2018 in New York, NY. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - JUNE 18: Victoria Beckham out and about on June 18, 2018 in New York City. (Photo by Gotham/GC Images)
LONDON, UNITED KINGDOM - JUNE 11: Victoria Beckham seen leaving Scott's Fish and Seafood Restaurant on June 11, 2018 in London, England. PHOTOGRAPH BY Eagle Lee / Barcroft Images (Photo credit should read PALACE LEE / Barcroft Media via Getty Images)
LONDON, ENGLAND - MAY 22: Victoria Beckham seen at her Dover St VB Store on May 22, 2018 in London, England. (Photo by Neil Mockford/GC Images)
WINDSOR, UNITED KINGDOM - MAY 19: David Beckham and Victoria Beckham arrive at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England. (Photo by Ian West - WPA Pool/Getty Images)
HOLLYWOOD, CA - APRIL 16: Actress Eva Longoria and fashion designer Victoria Beckham attend the ceremony honoring Eva Longoria with star on the Hollywood Walk of Fame on April 16, 2018 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
PARIS, FRANCE - MARCH 28: Victoria Beckham is seen at Gare du Nord station on March 28, 2018 in Paris, France. (Photo by Marc Piasecki/GC Images)
BEVERLY HILLS, CA - APRIL 12: Victoria Beckham attends an event celebrating Reebok and Victoria Beckham celebrate their partnership. Special guest Shaquille O'Neal officially welcomes Victoria to the Reebok Team at The House on Sunset on April 12, 2018 in Beverly Hills, California. (Photo by Donato Sardella/Getty Images for Reebok)
LONDON, UNITED KINGDOM - MARCH 14: Victoria Beckham seen at St Pancras Station on March 14, 2018 in London, England. PHOTOGRAPH BY Eagle Lee / Barcroft Images (Photo credit should read PALACE LEE / Barcroft Media via Getty Images)
PARIS, FRANCE - MARCH 14: Victoria Beckham is seen on March 14, 2018 in Paris, France. (Photo by Marc Piasecki/GC Images)
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