sentence: On December 16, 2019, Billboard announced that, after 25 years of release, the song had reached number one on the Hot 100, marking Carey's 19th chart-topper, extending her record as the soloist with the most US number-ones in history.
modified: fix grammar: On Decembers 16, 2019, Billboards announced that, after 25 year of releases, the songs had reached numbers one on the Hots 100, marking Careys's 19th charts-toppers, extending her records as the soloists with the most USs numbers-one in histories.