Charli D'Amelio and Addison Rae are offering the Kardashians a type of credibility they can't buy — and it's a mutually beneficial relationship

• Addison Rae and Charli D'Amelio appeared on the latest episode of "The Kardashians."
• Appearing alongside the famous family solidifies their crossover into traditional celebrity.

Addison Rae and Charli D'Amelio have finally made their way onto "The Kardashians" — and not only does it bode well for their transition to more traditional celebrity from TikTok stardom, but it stands to benefit their Kardashian connections as well.

Addison Rae, born Addison Rae Easterling, and D'Amelio cropped up at a "Poolside with Poosh" event for Kourtney Kardashian Barker's lifestyle brand on a recent episode of "The Kardashians." And while the event was full of health-forward, glitzy elements like Erewhon smoothies and synchronized swimmer performances (plus a cameo from Kendall Jenner's 818 Tequila), it also showed how close TikTok's stars have become to the closest thing the US has to a royal family.

Both Easterling and D'Amelio have existing ties to Kardashian Barker's social circle. Easterling and Kardashian Barker are well-documented friends, leading to Easterling appearing on "Keeping Up With the Kardashians." D'Amelio is currently dating Landon Barker, Kardashian Barker's stepson, and has previously spoken about her boyfriend's family being "nothing but kind."

Undoubtedly, proximity to younger talent stands to benefit Kardashian Barker. As Kat Tenbarge wrote for Insider back in the early days of the Easterling-Kardashian alliance in 2020, Easterling's online, cross-platform clout stands to benefit both Kardashian Barker and her brands through appearing in Poosh videos, or like on "The Kardashians," Poosh events. After all, the best TikToker in the Kardashian-Jenner family is North West, who runs an account with her mother, Kim Kardashian.

On the flip side, appearing on "The Kardashians," the family's flagship reality show, is a pretty strong marker that Easterling and D'Amelio, whose careers began on TikTok, have crossed over into the realm of traditional celebrity. Easterling has already starred in a Netflix film ("He's All That"), and D'Amelio has jumped into reality TV with her family's series "The D'Amelio Show." But some of those ventures bring skepticism by virtue of the women's influencer careers.

Being seen next to a Kardashian reinforces that they've made it, and belong to, the world of conventional celebrity. And even as Easterling and D'Amelio have diversified their careers outside of typical influencer work, their online reach and Gen Z celebrity status makes them valuable to a famous family who's constantly fighting for relevancy.