Kylie Jenner sang them to her infant daughter in a Kylie Cosmetics office tour video. Remixes were made, and even Ariana Grande shared a cover.
And Jenner, ever the entrepreneur, turned the viral moment into a marketing tool complete with official merch. Now, almost exactly a year later, Jenner is back with a new ditty phenomenon.
It all started with a clip from the upcoming season of Keeping Up With the Kardashians, which finds Jenner on a completely different level from her dining companions.
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