Mariah Carey is back at No. 1 again, with her holiday classic “All I Want for Christmas Is You” spending a sixth week atop the Billboard Hot 100. And just because No. 1 is a familiar spot for the Queen of Christmas doesn’t mean she isn’t celebrating the song’s latest return to the top. Explore See latest videos, charts and news “Yaaaas! I can’t even know what to say,” Carey says in a celebratory voice note she tweeted out Monday (Dec. 20). “The kids [10-year-old twins Monroe and Moroccan] just woke me up with confetti … and [boyfriend Bryan] Tanaka brought in two mimosas – one for him, one for me. We’re celebrating. This type of news, it’s never like, ‘Oh my gosh, I’m so bored of this news.’ To have another Billboard Hot 100 [No. 1] with a song that means so much to me, I can’t even, I can...