Charlotte, who won this year's Celebrity Big Brother, went to see Jessie at one of her 'Alive' concerts in Newcastle, and spent time with the popstar backstage.
The pair clearly got on well and cuddled up for a backstage photo, with Charlotte later branding 25-year-old Jessie as "incredible" and a "role model."
Posting the photo to Instagram (27 October), Jessie said: "So fun meeting you Charlotte, thank you for coming! #alivetouruk #newcastle #geordieshore."
Charlotte, who wore an oversized red check dress with black boots, tweeted: "Thank you so much @JessieJ we had the best night ever!!! Everyone please tweet her respect for me!!!"
She later added: "@JessieJ such an amazing role model! Great to see you, you're so much fun as well!!!!"
Jessie, who kicked off her 'Alive' tour two weeks ago, stood out in a black and gold crop top with matching leggings. She was all smiles as she flung her arms around Charlotte for the snap. Potential BFFs? Never say never!
'Price Tag' singer Jessie's next stop will be at London's O2 Arena on Tuesday (29 October), where's she'll play two dates.
Watch Jessie J's music video for 'It's My Party' below: