Photo: Cassy Athena/Getty; Kim and North/TikTok

North Westis back to pranking and this time, little brotherPsalmis her target.
The 9-year-old daughter ofKim Kardashianand exKanye Westdecided to cause a little mischief on behalf of her 4-year-old brother’s Elf on the Shelf for a newTikTokvideo this week.
Setting her video to the track “Let It Snow,” North uses a KKW Beauty black liquid eyeliner to draw all over Psalm’s face as he slept. After giving him a monocle, a curly mustache, a soul patch and drawings on his forehead, North carefully places the eyeliner in the elf’s arm next to her brother.
“Elf on the shelf ha ha ha,” she captioned the video.
Earlier this week, North pranked her mom as she slept,pretending to shave offThe Kardashianstar’s carefully-styled eyebrows.
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Holding a pink eyebrow razor in her hand, North walked down the hallway and over to where her mom was sleeping. She began to use the razor on the area above Kardashian’s eyebrows while trying to wake her up.
North started to shake Kardashian, saying “Mom, get up,” to which the reality star mumbled that she was awake and slowly opened her eyes, only to see her thick brows looking much thinner, courtesy of TikTok’s “fake eyebrow filter.”
Kardashian then sat up and got a better look, saying, “North, this is not funny,” as the pre-teen laughed in the background.
North has been helping her mom with the Christmas decorations, particularly her siblings' elves, since earlier this season.
For North’s own personalized elf display, she designed a bouquet of candy canes to look like a basketball, with an actual basketball resting on another display of fanned-out candies.
source: people.com