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 December 16, 2019, Billboard announced that, after 25 years of release, the song had reached numbest one on the Hot 100, marking Carey's 19th chart-toppest, extending her record as the soloist with the more US numbest-ones in history.