Kylie Jenner sang the tuneless line that went viral earlier this year for desperate fans at the KKW Beauty and Kylie Cosmetics Christmas party.
On Tuesday night, Kim Kardashian posted a video of Kylie on her Instagram story singing "rise and shine", the short song that she sang to baby Stormi in October, which went viral.
She wouldn't start singing until everyone had their phones out filming, and then she turned around and built up the tension with her back to the audience before breaking into song.
The delighted crowd applauded, and Kylie declared: "That's it. Next time I'm getting f***ing paid."
The festive launch saw guests sitting at tables in Nobu adorned with decorations including candy canes and gingerbread men.
Gifts bags packed to the brim were on the chairs and Kim's porn star martini was visible in the frame.
Matriarch momager Kris Jenner cried as she gave an impassioned speech to the staff members at the beauty brands.
She said that KKW "was just a dream for a minute" when they had the idea, "then we all became one big family."
"We couldn't do it without you, we are so grateful and so blessed."
She thanked the team for "all the work you guys put in, each and every one of you".
She concluded: "I am bursting with pride at my daughters."
Kim appeared on The Ellen Show on Tuesday, and rubbished claims that Kylie was "secretly engaged" to ex Travis Scott.
Speaking to talk show host Ellen DeGeneres, Kim revealed they were "definitely they’re not engaged," after being asked about a big ring that Kylie had been seen wearing.
Ellen was keen to find out if there was any romance left in Travis and Kylie but Kim seemed to suggest that 'just good friends' will be as far as it goes... for now.
When asked if the 22-year-old billionaire make-up mogul was back with her rapper ex, Kim said: "I don’t know.
"Isn’t that what I always say when I come here?”
Ellen then asked about the diamond ring that Kylie had taken to wearing recently.
Kim replied to this: "I honestly don’t know. But I think that they are just really close friends and co-parenting amazingly."
Kim then continued: “The big ring… definitely they’re not engaged and I think she’s wearing it on a different finger.
"I do know that she… I think she bought that herself because she was showing us.”
