Among the bells and whistles that Parker added to "December Back 2 June" was a high-pitched "It's just Christmastime" line. "I was like, 'Where did he find this Christmas Jackson 5 song that I've never heard in all my life?'" Keys thought when she heard it for the first time. "And so I talked to him, and I'm like, 'Is this a sample? What is this?' And he had actually created that voice and that kind of sample-sounding pitch."
"And I fell in love with it, because to me it felt like a 'You Don't Know My Name' or one of these songs that are my style, like that kind of '70s sample, we'll put a modern approach on it," she explained to Billboard
. "And so it totally was 100% me, and he said that he created it with that in mind."