The reality star and clothing mogul took to Instagram on Saturday to share a clip of his younger sister standing in her living room -- next to some particularly awesome black-and-white checkerboard pumpkins that also matched her checkerboard floor -- as she (almost silently) reenacted her now-viral tune.
As Rob filmed Kylie -- who was rocking a curve-hugging snakeskin-print ensemble -- the 22-year-old cosmetics mogul silently mouthed her famous "rise and shine."
Rob excitedly captioned the quiet clip simply, "Rise and shine ?," in case fans couldn't tell what Kylie was silently saying.
"Rise and Shine" has since become a social media sensation, with fans and trolls alike posting remixes and covers, setting the tune as their alarms and more.
Even celebs like Ariana Grande and Miley Cyrus got in on the fun, with Ari posting an Instagram Story of her singing the tune, while Miley shared a hilarious meme of the Voice coaches turning their chairs for Kylie's song.