Rob Kardashian Makes Rare Cameo with Sister Kim Kardashian

The 38-year-old former TV personality made a rare appearance in his sister's most recent Instagram post, celebrating a close friend's birthday. See the photos inside.

Kim Kardashian posted a sweet tribute in honor of her friend Lala Anthony's birthday on Wednesday, June 25, sharing selfies with the actress that notably featured a rare sight: her brother Rob Kardashian.

In the images, Kim and Lala were glammed up on a night out, while Rob kept it casual in a black baseball cap and zip-up jacket, beaming at the camera as Kim captured the moment.

"Happy Birthday to my ace @lala Truly the bestest best friend a girl could ask for! I love you so much!!!! Today's your day!" Kim wrote in her caption. Lala responded in the comments, saying, "Love you for life and after!!!!! So much❤️❤️❤️."

And while the comments were full of birthday heartfelt greetings from fans, they overwhelmingly focused on Rob, a rather "reclusive" member of the Kardashian family. "OH MY GOSH ROBERT!!!!!!!!!!!!" one excited onlooker exclaimed.

"Sorry but Rob stole the show in this photo 😍" another gushed. "Rob stepped outside for Lala IKDR 😂," a fan joked. "We missed Rob," another, who seemed to echo the sentiment of many, added.

Contrary to his family, Rob has mostly stayed out of the spotlight, and his siblings have acknowledged and respected this. "My brother loves to be a little elusive," said his sister Khloe Kardashian during an episode of her podcast, "Khloe in Wonderland."

"I call him the Wizard from The Wizard of Oz 'cause he likes to be behind the curtain," she remarked, adding that they lived next door to each other in the same gated community.