Christmas signs off with one final surge — and it does not go quietly.

Mariah Carey extends her historic run at #1 as “All I Want for Christmas Is You” locks in another record-setting week, pushing her career total past 100 weeks at the summit and stretching the song’s reign to 21 weeks (with 22 looking very probable). Holiday classics dominate the charts for the last time this season, as Last Christmas, Underneath the Tree, and Jingle Bell Rock all close out their strongest runs yet — with Wham!’s Last Christmas claiming its best year ever, including a No. 2 peak on the Hot 100 and No. 1 on Billboard Global 200.

With the Christmas curtain closing, we turn to what comes next. Billboard’s new chart rules are about to take effect, YouTube is preparing to exit the charts entirely, and the way hits are measured is shifting in real time — raising serious questions about accuracy, longevity, and who benefits in the new era.

We also check in on early 2026 contenders: Tyla’s “CHANEL” surges globally, The Fate of Ophelia and Golden remain locked in a tight race, Ella Langley, Olivia Dean and Pooh Shiesty eyeing new peaks, and viral revivals from Djo and She & Him show how TikTok is still capable of rewriting a song’s fate overnight.

One last Christmas push — and then everything changes. 🎄📈