Happy 40th birthday Kourtney Kardashian.
To celebrate the star turning 40, look back at photos of her during the years.
Kourtney Kardashian
ShareWESTLAKE VILLAGE, CA - NOVEMBER 04: Kourtney Kardashian films an episode of Amazon's live stream fashion and beauty show "Style Code Live" at Four Seasons Hotel on November 4, 2016 in Westlake Village, California. (Photo by John Sciulli/Getty Images for Amazon's Style Code Live )
Kourtney Kardashian
ShareNEW YORK, NY - NOVEMBER 21: Kourtney Kardashian attends the 2016 Angel Ball hosted by Gabrielle's Angel Foundation For Cancer Research on November 21, 2016 in New York City. (Photo by Jamie McCarthy/Getty Images for Gabrielle's Angel Foundation)
Kourtney Kardashian
ShareHOLLYWOOD, CA - APRIL 12: TV personality Kourtney Kardashian attends the premiere of Open Road Films' "The Promise" at TCL Chinese Theatre on April 12, 2017 in Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - OCTOBER 25: Kourtney Kardashian attends the launch of PrettyLittleThing by Kourtney Kardashian at Poppy on October 25, 2017 in Los Angeles, California. (Photo by Rich Fury/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - MAY 04: Kourtney Kardashian arrives for The Syrian American Medical Society hosts the Voices in Displacement Gala at Riviera 31 at Sofitel on May 4, 2018 in Los Angeles, California. (Photo by Gabriel Olsen/Getty Images)
Kourtney Kardashian
ShareATLANTIC CITY, NJ - JULY 28: Kourtney Kardashian Hosts The Grand Opening Of Sugar Factory At Hard Rock Hotel & Casino Atlantic City at Sugar Factory at the Hard Rock Hotel & Casino on July 28, 2018 in Atlantic City, New Jersey. (Photo by Dave Kotinsky/Getty Images for Sugar Factory American Brasserie)
Kourtney Kardashian
ShareLOS ANGELES, CA - NOVEMBER 03: Kourtney Kardashian attends 2018 LACMA Art + Film Gala honoring Catherine Opie and Guillermo del Toro presented by Gucci at LACMA on November 3, 2018 in Los Angeles, California. (Photo by David Livingston/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - MARCH 02: TV personalities Khloe Kardashian, Kourtney Kardashian and Kim Kardashian attend the 22nd Annual Elton John AIDS Foundation's Oscar Viewing Party on March 2, 2014 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - FEBRUARY 24: TV personality Kourtney Kardashian arrives at the 21st Annual Elton John AIDS Foundation's Oscar Viewing Party on February 24, 2013 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareHOLLYWOOD, CA - AUGUST 17: Kourtney Kardashian attends the Kardashian Kollection Launch Party at The Colony on August 17, 2011 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
Kourtney Kardashian
ShareLAS VEGAS, NV - FEBRUARY 14: Television personalities Kourtney Kardashian (L) and Scott Disick attend the launch of AG Adriano Goldschmied's "backstAGe presents:" initiative featuring The Black Keys at the Marquee Nightclub at the Cosmopolitan of Las Vegas February 14, 2011 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images for AG Adriano Goldschmied)
Kourtney Kardashian
ShareLOS ANGELES, CA - JANUARY 05: TV personality Kourtney Kardashian arrives at the 2011 People's Choice Awards at Nokia Theatre L.A. Live on January 5, 2011 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - JANUARY 05: (L-R) TV personalities Kim Kardashian, Kourtney Kardashian and Khloe Kardashian arrive at the 2011 People's Choice Awards at Nokia Theatre L.A. Live on January 5, 2011 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for PCA)
Kourtney Kardashian
ShareLOS ANGELES, CA - DECEMBER 08: Kourtney Kardashian arrives at an in-store appearance celebrating the "Kardashian by bebe" holiday and resort collections at the bebe Beverly Center on December 8, 2010 in Los Angeles, California. (Photo by Michael Buckner/Getty Images)
Kourtney Kardashian
ShareNEW YORK - SEPTEMBER 11: Kourtney Kardashian attends the Beach Bunny Swimwear Spring 2011 fashion show during Mercedes-Benz Fashion Week at Style360 on September 11, 2010 in New York City. (Photo by Dario Cantatore/Getty Images)
Kourtney Kardashian
ShareWEST HOLLYWOOD, CA - AUGUST 25: Actress Kourtney Kardashian attends Los Angeles Confidential Magazine's Fall Fashion issue celebration at The London West Hollywood on August 25, 2010 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareUNIVERSAL CITY, CA - AUGUST 08: Television personality Kourtney Kardashian arrives at the 2010 Teen Choice Awards at Gibson Amphitheatre on August 8, 2010 in Universal City, California. (Photo by Jason Merritt/Getty Images)
Kourtney Kardashian
ShareBRIDGEHAMPTON, NY - JULY 24: Television personality Scott Disick and Kourtney Kardashian attend the opening day of the 2010 Mercedes-Benz Polo Challenge at Blue Star Jets Field at Two Trees Farm on July 24, 2010 in Bridgehampton, New York. (Photo by Steven Henry/Getty Images)
Kourtney Kardashian
ShareMIAMI BEACH, FL - JULY 16: Kourtney Kardashian attends Mercedes-Benz Fashion Week Swim 2011 at The Raleigh on July 16, 2010 in Miami Beach, Florida. (Photo by Andrew H. Walker/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - OCTOBER 21: TV personalities Kourtney Kardashian and Kim Kardashian arrive at the Lamar Odom Launches Rich Soil At Kitson LA event on October 21, 2009 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - SEPTEMBER 20: TV personality Kourtney Kardashian arrives at the 61st Primetime Emmy Awards held at the Nokia Theatre on September 20, 2009 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - MARCH 24: Kourtney Kardashian arrives to TV Guide's sexiest stars party held at the Sunset Tower Hotel, on March 24, 2009 in Hollywood, California. (Photo by Jason Merritt/Getty Images)
Kourtney Kardashian
ShareMIAMI BEACH, FL - NOVEMBER 15: Kourtney Kardashian attends the 2008 Victoria's Secret Fashion Show at the Fontainebleau on November 15, 2008 in Miami Beach, Florida. (Photo by Gustavo Caballero/Getty Images)
Kourtney Kardashian
ShareLOS ANGELES, CA - SEPTEMBER 25: Actresses Courtney (L) and Kim Kardashian attend the Esquire House Hollywood Hills "Rock The Vote" party on September 25, 2008 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareMONTE CARLO, MONACO - JUNE 11: TV personality Kourtney Kardashian attends a photocall promoting the television series "Keeping Up With the Kardashians" on the fourth day of the 2008 Monte Carlo Television Festival held at Grimaldi Forum on June 11, 2008 in Monte Carlo, Principality of Monaco. (Photo by Pascal Le Segretain/Getty Images)
Premiere Of “Keeping Up With The Kardashians”
ShareLOS ANGELES - OCTOBER 9: Kourtney Kardashian arrives at the Premiere of the new reality show "Keeping up with the Kardashians" held at the Pacific Design Center on Octorber 9,2007 in Los Angeles, California. (Photo by Alberto E. Rodriguez/ Getty Images)
Kim Kardashian Celebrates Her Birthday At Les Deux – Arrivals
ShareLOS ANGELES, CA - OCTOBER 21: (L-R) Kourtney, Kim, and Khloe Kardashian arrive at Kim's Birthday Party at Les Deux on October 21, 2007 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images)
7th Annual Breakthrough Of The Year Awards – Inside
ShareHOLLYWOOD, CA - DECEMBER 9: Socialite Kim Kardashian and sister Kourtney attend the 7th Annual Breakthrough of the Year Awards on December 9, 2007 in Hollywood, California. (Photo by Vince Bucci/Getty Images).
Jermaine Dupri’s So So Def/Island Pre-GRAMMY Party – Arrivals
ShareHOLLYWOOD - FEBRUARY 08: Socialite and TV Personality Kourtney Kardashian attends the So So Def/Island Records Annual Pre-Grammy Party held at Central Nightclub on February 8, 2008 in Hollywood, California. (Photo by Neilson Barnard/Getty Images)
Kourtney Kardashian
ShareCHICAGO, IL - SEPTEMBER 15: Kourtney Kardashian attends the TAO Chicago Grand Opening Celebration at TAO Chicago on September 15, 2018 in Chicago, Illinois. (Photo by Jeff Schear/Getty Images for TAO Chicago)
Kourtney Kardashian
ShareWEST HOLLYWOOD, CA - OCTOBER 12: Kim Kardashian (L) and Kourtney Kardashian attend Cosmopolitan's 50th Birthday Celebration at Ysabel on October 12, 2015 in West Hollywood, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareCULVER CITY, CA - NOVEMBER 19: TV personality Kourtney Kardashian attends the WWD And Variety inaugural stylemakers' event at Smashbox Studios on November 19, 2015 in Culver City, California. (Photo by Jason Merritt/Getty Images)
Kourtney Kardashian
ShareCULVER CITY, CA - NOVEMBER 14: Actress Kourtney Kardashian attends the 2015 Baby2Baby Gala at 3LABS on November 14, 2015 in Culver City, California. (Photo by Frederick M. Brown/Getty Images)
Kourtney Kardashian
ShareHOLLYWOOD, CA - APRIL 13: TV personality Kourtney Kardashian attends the alice + olivia by Stacey Bendet and Neiman Marcus present See-Now-Buy-Now Runway Show at NeueHouse Los Angeles on April 13, 2016 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
Kourtney Kardashian
ShareBEVERLY HILLS, CA - JANUARY 10: TV personality Kourtney Kardashian attends InStyle and Warner Bros. 73rd Annual Golden Globe Awards Post-Party at The Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California. (Photo by Frazer Harrison/Getty Images)
Kourtney Kardashian
ShareNEW YORK, NY - MAY 16: TV personality Kourtney Kardashian attends the NBCUniversal 2016 Upfront Presentation on May 16, 2016 in New York, New York. (Photo by Slaven Vlasic/Getty Images)
Kourtney Kardashian
ShareWEST HOLLYWOOD, CA - OCTOBER 19: Tv personality Kourtney Kardashian attends Cocktail Party With Manuka Doctor Global Brand Ambassador Kourtney Kardashian at Gracias Madre on October 19, 2016 in West Hollywood, California. (Photo by Charley Gallay/Getty Images for Manuka Doctor)
Kourtney Kardashian
ShareNEW YORK, NY - NOVEMBER 21: Khloe Kardashian and Kourtney Kardashian attend the 2016 Angel Ball hosted by Gabrielle's Angel Foundation For Cancer Research on November 21, 2016 in New York City. (Photo by Jamie McCarthy/Getty Images for Gabrielle's Angel Foundation)
Kourtney Kardashian
ShareLOS ANGELES, CA - FEBRUARY 11: TV personality Kourtney Kardashian attends Pre-GRAMMY Gala and Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton on February 11, 2017 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
Kourtney Kardashian
ShareNEW YORK, NY - JUNE 04: Kim Kardashian West and Kourtney Kardashian attend the 2018 CFDA Fashion Awards at Brooklyn Museum on June 4, 2018 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
