Keeping Up With The Kameos! The Weirdest & Wildest Kardashian Guest Stars Revealed

Jennifer Lawrence made a surprise appearance on a recent episode of Keeping Up with the Kardashians, and the Oscar-winning actress isn’t shy about admitting she is a huge Kardashian fan!

In the episode, Khloé Kardashian and Scott Disick attempt to FaceTime momager Kris Jenner while at Khloé’s house. In a twist, Lawrence answers Kris' phone, telling the pair, “This is Jennifer f***ing Lawrence, that’s who you’re talking to.”

Scott, unimpressed, replies bluntly, “Not that you’re not very famous and beautiful, but can I talk to Kris?”

“I am the new Kris,” the 28-year-old actress responds.

The Kardashian-Jenner matriarch and Lawrence have been friends for years, ever since Kris, 63, surprised the Hunger Games star with a birthday cake after learning she was a fan. That’s led to some pretty amazing moments between the pair, including the wild time when they got drunk together.

“I remember getting naked in your mom’s closet and ordering you to dress me,” the Oscar-winning actress told Kim Kardashian during an appearance on Jimmy Kimmel Live! “You dressed me fabulously.”

“I’ve never seen my mom more drunk,” noted Kim of the memory.

Over the course of their 16 seasons, the Kardashian family have welcomed some beloved — and sometimes unexpected — guests into their homes. Scroll through RadarOnline.com's gallery for a rundown on some of the most unique to appear on KUWTK.

Before Kim Kardashians’ shape wear brand was rebranded from Kimono to Skims, she asked momager Kris Jenner to film a clip promoting the brand with Real Housewives of Beverly Hills friends Kyle Richards and Lisa Rinna. The scene aired on the November 3 episode of Keeping Up with the Kardashians.

“This is without alcohol,” Kris pointed out as the three of them got ready to shoot the informercial. The video apparently did not air, as Kim changed the name of her brand after receiving backlash from fans.

Ryan Seacrest has been tight with Kardashians since the start, helping launch the reality hit back in 2007 and introducing the world to sisters Kourtney, Kim and Khloé, along with their half-sisters, Kendall and Kylie Jenner. Seacrest also served as the executive producer of the show's five spinoffs: Life of Kylie, Kourtney and Kim Take Miami, Khloe and Lamar, Kourtney and Kim Take New York, and I Am Cait.

He may not appear on camera for his girlfriend Lala Kent’s reality show Vanderpump Rules, but Randall Emmett has dropped by for appearances with the Kardashian crew while they film, playing poker with Khloe at a charity tournament. Khloe has even called the engaged pair her "favorite couple."

Playboy founder Hugh Hefner, along with Girls Next Door alumni Holly Madison and Kendra Wilkinson-Baskett, was one of KUWTK's earlier guest stars. Hefner showed up on the fourth episode of the first season to ask Kim to pose for his legendary magazine.

In the Season 2 finale of Keeping Up with the Kardashians, the group met up with Shaquille O’Neal and head to New Orleans to help a family who lost everything to Hurricane Katrina.

Kim and Carmen Electra both starred in the 2008 film Disaster Movie. In a Season 3 episode, the stunning duo headed to Comic-Con promote the film.

Back in December 2011, Tyga made his first appearance on the show as the musical guest for Kendall's Sweet 16. The two would later date.

Kris invited her "good friend" Lance Bass over to their home for dinner one evening, and it was all filmed for a 2012 episode of the show.

The fourth season of KUWTK saw Khloé marry then-L.A. Laker basketballer Lamar Odom. Needless to say, it was a star-studded event attended by Kelly Osbourne, Vera Wang, Kobe Bryant, Nicole Eggert and many others.

Long before she became Mrs. Kanye West, Kim had a brief marriage to basketball journeyman Kris Humphries. Although the union only lasted for 72 days, the wedding turned out to be a memorable event, attended by the likes of Demi Lovato, Julianne Hough, Lindsay Lohan, Eva Longoria, Rachael Ray and many other A-listers.

Caitlyn Jenner has a surprisingly close friendship with ventriloquist Jeff Dunham. The comedian was a dinner guest once.

The "Thank You, Next" hitmaker admitted she was "so excited" to make her Keeping Up With The Kardashians debut, which will air in mid-May. In the clip, Ariana, 25, greets Kris Jenner, on the set of her infamous music video, in which the momager makes a cameo in the Mean Girls skit as Regina George's mom. "Feel free to make it your own," Ariana told Kris, adding she can "just freestyle it." "This is the first time I've ever been in a professional music video," Kris said nervously. "I don't want to let Ariana Grande down!"

Robin Thicke — who is a judge on The Masked Singer — made an appearance on the show for Kourtney Kardashian’s 40th birthday bash.

“Flames” singer Sia was another of Kourtney’s celebrity pals who attended the televised party.

The mom of three even invited her rumored fling, Travis Barker, to her birthday celebration. RadarOnline.com readers know Kourtney is often spotted out and about with the musician, sipping on green juice, attending parties, or shopping around town.