The Kardashians then and now
When "Keeping Up with the Kardashians" debuted on E! in October 2007, the Kardashian-Jenner clan looked much different than it does today. Then, they were just a larger-than-average, louder-than-average family with a penchant for the spotlight.
Here, from left to right, Rob, Kourtney, Kendall, Kim, Kylie and Khloe arrive at a concert in Irvine, California, on May 10, 2008.
The Jenners in 2000
In 2000, Kendall and Kylie, the daughters of Kris Jenner and former U.S. gold medal decathlete Bruce Jenner, now known as Caitlyn Jenner, were little girls, unaware of cutting-edge fashion or social media followings. They now have more than 83 million and more than 98 million Instagram followers, respectively.
Kendall and Kylie - fashion
From 2008 to 2015, the Jenner sisters' fashion sense evolved drastically.
Kylie Jenner - 2009
In September 2009, "Keeping Up with the Kardashians" was in its second year, and Kylie was 12.
Kylie Jenner - 2014-15
Kylie's look transformed between February 2014 and August 2015.
Kylie Jenner - 2017
Kylie has her own lipstick line, Lip Kit.
Here, she poses at the Costume Institute Gala at the Metropolitan Museum of Art in New York in May 2017.
Reported pregnancy
In 2017, People magazine and other sources reported that Kylie was pregnant and that her rapper boyfriend, Travis Scott, was the father.
Here, the two attend the 2017 NBA Playoffs in Houston, Texas.
Kendall Jenner - 2009
In 2009, Kendall Jenner was a 14-year-old side character on what was, essentially, her older sisters' show.
Kendall Jenner - 2015
Flash forward to 2015: Kendall was one of the most sought-after fashion models in the world.
Here, she walks the runway during the Chanel show at Paris Fashion Week, Oct. 6, 2015.
Kendall Jenner - 2017
In 2017, Kendall was still walking red carpets and runways.
Here, she attends the 70th annual Cannes Film Festival in May.
Khloe Kardashian - 2007
This is Khloe Kardashian in 2007.
Khloe Kardashian - 2008-15
In recent years, Khloe's fashion sense and her social media presence have grown more closely aligned with those of her sisters. She has more than 69 million followers on Instagram.
Marriage to Lamar Odom
In 2009, Khloe married NBA player Lamar Odom.
The two filed for divorce in 2013. The couple briefly called off the split after Odom was hospitalized in 2015, and the divorce went through the following year.
Pregnancy
Khloe started dating NBA player Tristan Thompson in 2016. In 2017, multiple media outlets reported that the two were expecting a baby.
Kim & Paris - 2006
Before "Keeping Up with the Kardashians," Kim was socialite Paris Hilton's close friend and assistant. She made cameos on Hilton's reality show, "The Simple Life," helping her friend clean and organize her closet.
Fun fact: As of September 2017, Kim Kardashian West had 103 million followers on Instagram. Paris Hilton had 7.4 million.
Kim Kardashian - 2006
Kardashian's style has evolved greatly over a decade. Kim Kardashian wore this ensemble to New York Fashion Week in September 2006.
Kimye
After two failed marriages, Kim Kardashian married rapper Kanye West in 2014.
Here, they pose at the 2015 Met Gala.
Kids
Kim and Kanye have two children: North West, pictured, and Saint West.
Third on the way
In 2017, the couple announced they are expecting their third child via surrogate.
Kourtney Kardashian - 2007
Kourtney Kardashian's style has also changed quite a bit from when the show first aired.
Kourtney Kardashian - 2007-15
The photo on the left shows Kourtney at the premiere of "Keeping Up with the Kardashians" on Oct. 9, 2007. The photo on the right shows Kourtney in 2015.
Children
Kourtney has three children with Scott Disick, who she dated from 2006 to 2015.
Kourtney Kardashian - 2017
Kourtney Kardashian attends the premiere of "The Promise" in Hollywood in April 2017. As of September 2017, she was dating former boxer Younes Bendjima.
Rob Kardashian - 2011
Lone brother Rob Kardashian's life has also changed substantially since the spotlight was first cast upon him.
"Dancing with the Stars"
Rob appeared on the 2011 season of "Dancing with the Stars." He and his partner came in second place.
Blac Chyna
Rob began dating Blac Chyna in 2015. They had one child. They split in 2016.
Bruce Jenner and Caitlyn Jenner
In July 1976, Bruce Jenner transfixed the nation with a record-setting performance at the Summer Olympics in Montreal, bringing home the gold medal for the decathlon. Just less than 40 years later, Jenner seized the nation's attention again, this time for transitioning into Caitlyn Jenner.
Caitlyn Jenner
In 2015, Caitlyn's own show "I Am Cait" premiered.
Her memoir, "The Secrets of My Life," was published in 2017.
Kris Jenner - 1993
Here, Kris Jenner appears with then-husband Bruce Jenner in September 1993.
Kris Jenner - 2015
In 2015, Kris Jenner divorced Bruce Jenner, now known as Caitlyn, and was dating a younger man, Corey Gamble.