Kourtney Kardashian, in black Olivier Theyskens, and Travis Barker attend the 2021 MTV Video Music Awards on September 12, 2021. Reuters
Kourtney Kardashian, wearing a red and white dress, walks Dash's autumn 2007 catwalk in Los Angeles on March 24, 2007. WireImage
Kourtney Kardashian, in a black and white scarf mini dress, arrives at the 'LA Direct' magazine expansion party in West Hollywood on July 21, 2007. FilmMagic
Kourtney Kardashian, in a black mini with metallic dot detail, arrives at the 'Keeping up with the Kardashians' premiere at the Pacific Design Centre on October 9, 2007. Getty Images
In a black skirt and white T-shirt with lace detail, the eldest Kardashian sibling attends the 7th Annual Breakthrough of the Year Awards in Los Angeles on December 9, 2007. Startraks / Shutterstock
In an LBD with necklace-style straps, the media personality attends the '944' magazine party in Scottsdale, Arizona on January 31, 2008. PA Images via Reuters
In a black shirt dress, Kourtney Kardashian attends 'Details' magazine's annual Mavericks celebration on March 21, 2008 in Beverly Hills. Getty Images
Kourtney Kardashian, right, in a lilac dress, with her mother Kris Jenner and sister Kim Kardashian, attends a 'Keeping Up with the Kardashians' photocall during the 2008 Monte Carlo Television Festival held at Grimaldi Forum in Monaco on June 11, 2008. Getty Images
Kourtney Kardashian, left, in a black gown, with her mother Kris Jenner and sister Kim Kardashian, attends the Golden Nymph awards ceremony during the 2008 Monte Carlo Television Festival held at Grimaldi Forum, Monte Carlo on June 12, 2008. Getty Images
Kourtney Kardashian, in a geometric print dress, arrives at the Teen Choice awards in Los Angeles on August 9, 2009. Reuters
Kourtney Kardashian, in black BCBG Max Azria, arrives at the 61st Primetime Emmy Awards with Kim Kardashian on September 20, 2009. EPA
Kourtney Kardashian, in a black one-shouldered dress, attends the Dash fashion show at Jet Nightclub, Las Vegas, on February 19, 2010. PA
Kourtney Kardashian, second from right, in a red strapless dress, with her mother, four sisters and son, Mason Dash Disick, arrive at the 'Redbook' family issue celebrations in West Hollywood on April 11, 2011. FilmMagic
Kourtney Kardashian, centre, in a black Kardashian Kollection dress, with sisters Kim and Khloe Kardashian promote their Kardashian Kollection at Sears Cerritos, California on September 18, 2011. FilmMagic
Kourtney Kardashian, in white Raoul, arrives at the 20th annual Elton John Aids Foundation Academy Awards Viewing Party in West Hollywood on February 26, 2012. Reuters
Kourtney Kardashian, in a black and white print maxi dress by T-Bags, and Scott Disick attend the grand opening of Ryu on April 23, 2012 in New York City. Getty Images
Kourtney Kardashian, in a Kardashian Kollection dress, and Kim Kardashian attend the launch party for the Kardashian Kollection for Dorothy Perkins in London on November 8, 2012. Getty Images
Kourtney Kardashian, in a Kardashian Kollection shirt and trousers, with Kim and Khloe Kardashian, attends the launch party for the Kardashian Kollection for Dorothy Perkins at Westfield, London on November 10, 2012. Getty Images
Kourtney Kardashian, in red and black floral Brian Rennie for Basler, arrives at the 2013 Elton John Aids Foundation Oscar Party in West Hollywood on February 24, 2013. Reuters
Kourtney Kardashian, in Saint Laurent at the 2014 Elton John Aids Foundation Oscar Party in West Hollywood on March 2, 2014. Reuters
Kourtney Kardashian (right), in a Wolford body suit and beige jeans, with sisters Kim Kardashian, Khloe Kardashian, Kendall Jenner, Kylie Jenner, attends Apple Store Soho Presents Meet The Developers on September 14, 2015 in New York City. FilmMagic
Kourtney Kardashian, in red Balmain, arrives at the 32nd MTV Video Music Awards at the Microsoft Theatre in Los Angeles on August 30, 2015. EPA
Kourtney Kardashian, left, in a white suit, with Khloe Kardashian, arrives at the 2016 NBCUniversal Upfront Presentation in New York on May 16, 2016. EPA
Kourtney Kardashian, in a black silk asymmetric Anthony Vaccarello dress attends the 'Harper's Bazaar' celebration of 'Icons By Carine Roitfeld' in New York on September 9, 2016. Reuters
Kourtney Kardashian, centre, in gold Balmain, with Kim Kardashian and Kris Jenner, attends the Balmain show during Paris Fashion Week on September 29, 2016 in Paris. Getty Images
Kourtney Kardashian, left, in Georgine, and Kim Kardashian West attend Buro 24/7 Fashion Forward Initiative during Paris Fashion Week on September 30, 2016. Getty Images
Kourtney Kardashian, left, in Givenchy, with Kim Kardashian and Kris Jenner, at the Givenchy show during Paris Fashion Week on October 2, 2016. Getty Images
Kourtney Kardashian, left, in a black suit with Kim Kardashian and Cher at the premiere of 'The Promise' at the TCL Chinese Theatre in Los Angeles on April 12, 2017. EPA
Kourtney Kardashian, in a basketball jersey and leather trousers, with sister Khloe Kardashian at the 2017 NBA Finals on June 9, 2017. Getty Images
Kourtney Kardashian, in a glittering Christian Siriano suit, at the CFDA Awards in New York on June 4, 2018. AFP
Kourtney Kardashian, in black Gucci, with Kim Kardashian, arrives for the LACMA Art + Film Gala at the Los Angeles County Museum of Art on November 3, 2018. EPA
Kourtney Kardashian, in black Versace, attends the amfAR New York Gala 2019 at Cipriani Wall Street on February 6, 2019. EPA
Kourtney Kardashian, wearing Naeem Khan, arrives for the 2019 People's Choice Awards on November 10, 2019. EPA
Kourtney Kardashian, in black Olivier Theyskens, and Travis Barker attend the 2021 MTV Video Music Awards on September 12, 2021. Reuters
Kourtney Kardashian, wearing a red and white dress, walks Dash's autumn 2007 catwalk in Los Angeles on March 24, 2007. WireImage
Kourtney Kardashian, in a black and white scarf mini dress, arrives at the 'LA Direct' magazine expansion party in West Hollywood on July 21, 2007. FilmMagic
Kourtney Kardashian, in a black mini with metallic dot detail, arrives at the 'Keeping up with the Kardashians' premiere at the Pacific Design Centre on October 9, 2007. Getty Images
In a black skirt and white T-shirt with lace detail, the eldest Kardashian sibling attends the 7th Annual Breakthrough of the Year Awards in Los Angeles on December 9, 2007. Startraks / Shutterstock
In an LBD with necklace-style straps, the media personality attends the '944' magazine party in Scottsdale, Arizona on January 31, 2008. PA Images via Reuters
In a black shirt dress, Kourtney Kardashian attends 'Details' magazine's annual Mavericks celebration on March 21, 2008 in Beverly Hills. Getty Images
Kourtney Kardashian, right, in a lilac dress, with her mother Kris Jenner and sister Kim Kardashian, attends a 'Keeping Up with the Kardashians' photocall during the 2008 Monte Carlo Television Festival held at Grimaldi Forum in Monaco on June 11, 2008. Getty Images
Kourtney Kardashian, left, in a black gown, with her mother Kris Jenner and sister Kim Kardashian, attends the Golden Nymph awards ceremony during the 2008 Monte Carlo Television Festival held at Grimaldi Forum, Monte Carlo on June 12, 2008. Getty Images
Kourtney Kardashian, in a geometric print dress, arrives at the Teen Choice awards in Los Angeles on August 9, 2009. Reuters
Kourtney Kardashian, in black BCBG Max Azria, arrives at the 61st Primetime Emmy Awards with Kim Kardashian on September 20, 2009. EPA
Kourtney Kardashian, in a black one-shouldered dress, attends the Dash fashion show at Jet Nightclub, Las Vegas, on February 19, 2010. PA
Kourtney Kardashian, second from right, in a red strapless dress, with her mother, four sisters and son, Mason Dash Disick, arrive at the 'Redbook' family issue celebrations in West Hollywood on April 11, 2011. FilmMagic
Kourtney Kardashian, centre, in a black Kardashian Kollection dress, with sisters Kim and Khloe Kardashian promote their Kardashian Kollection at Sears Cerritos, California on September 18, 2011. FilmMagic
Kourtney Kardashian, in white Raoul, arrives at the 20th annual Elton John Aids Foundation Academy Awards Viewing Party in West Hollywood on February 26, 2012. Reuters
Kourtney Kardashian, in a black and white print maxi dress by T-Bags, and Scott Disick attend the grand opening of Ryu on April 23, 2012 in New York City. Getty Images
Kourtney Kardashian, in a Kardashian Kollection dress, and Kim Kardashian attend the launch party for the Kardashian Kollection for Dorothy Perkins in London on November 8, 2012. Getty Images
Kourtney Kardashian, in a Kardashian Kollection shirt and trousers, with Kim and Khloe Kardashian, attends the launch party for the Kardashian Kollection for Dorothy Perkins at Westfield, London on November 10, 2012. Getty Images
Kourtney Kardashian, in red and black floral Brian Rennie for Basler, arrives at the 2013 Elton John Aids Foundation Oscar Party in West Hollywood on February 24, 2013. Reuters
Kourtney Kardashian, in Saint Laurent at the 2014 Elton John Aids Foundation Oscar Party in West Hollywood on March 2, 2014. Reuters
Kourtney Kardashian (right), in a Wolford body suit and beige jeans, with sisters Kim Kardashian, Khloe Kardashian, Kendall Jenner, Kylie Jenner, attends Apple Store Soho Presents Meet The Developers on September 14, 2015 in New York City. FilmMagic
Kourtney Kardashian, in red Balmain, arrives at the 32nd MTV Video Music Awards at the Microsoft Theatre in Los Angeles on August 30, 2015. EPA
Kourtney Kardashian, left, in a white suit, with Khloe Kardashian, arrives at the 2016 NBCUniversal Upfront Presentation in New York on May 16, 2016. EPA
Kourtney Kardashian, in a black silk asymmetric Anthony Vaccarello dress attends the 'Harper's Bazaar' celebration of 'Icons By Carine Roitfeld' in New York on September 9, 2016. Reuters
Kourtney Kardashian, centre, in gold Balmain, with Kim Kardashian and Kris Jenner, attends the Balmain show during Paris Fashion Week on September 29, 2016 in Paris. Getty Images
Kourtney Kardashian, left, in Georgine, and Kim Kardashian West attend Buro 24/7 Fashion Forward Initiative during Paris Fashion Week on September 30, 2016. Getty Images
Kourtney Kardashian, left, in Givenchy, with Kim Kardashian and Kris Jenner, at the Givenchy show during Paris Fashion Week on October 2, 2016. Getty Images
Kourtney Kardashian, left, in a black suit with Kim Kardashian and Cher at the premiere of 'The Promise' at the TCL Chinese Theatre in Los Angeles on April 12, 2017. EPA
Kourtney Kardashian, in a basketball jersey and leather trousers, with sister Khloe Kardashian at the 2017 NBA Finals on June 9, 2017. Getty Images
Kourtney Kardashian, in a glittering Christian Siriano suit, at the CFDA Awards in New York on June 4, 2018. AFP
Kourtney Kardashian, in black Gucci, with Kim Kardashian, arrives for the LACMA Art + Film Gala at the Los Angeles County Museum of Art on November 3, 2018. EPA
Kourtney Kardashian, in black Versace, attends the amfAR New York Gala 2019 at Cipriani Wall Street on February 6, 2019. EPA
Kourtney Kardashian, wearing Naeem Khan, arrives for the 2019 People's Choice Awards on November 10, 2019. EPA
Kourtney Kardashian, in black Olivier Theyskens, and Travis Barker attend the 2021 MTV Video Music Awards on September 12, 2021. Reuters