Mariah Carey’s “All I Want For Christmas Is You” is officially the longest-leading No. 1 hit on the #Hot100 of all time, as it spends a record-breaking 20th week at No. 1 on the chart this week. 📈✨ The song surpasses the 19-week reigns of Lil Nas X’s “Old Town Road,” featuring Billy Ray Cyrus, and Shaboozey’s “A Bar Song (Tipsy)” to become the first song to spend 20 total weeks on top. Take a look at the longest-leading No. 1 songs on the Hot 100, through the charts dated Dec. 20, 2025.