Beyoncé had won 28 Grammy Awards by the 2021 ceremony, making her the most awarded woman and singer in Grammy history at that time.
At the 63rd Annual Grammy Awards in March 2021, she won four awards, including Best R&B Performance for “Black Parade.” Those victories brought her career total to 28 Grammy wins.
The achievement surpassed Alison Krauss’s previous record for the most Grammy wins by a female artist. Beyoncé also became the most awarded singer in Grammy history, although the broader all-person record has involved other categories and later developments.
This number is tied specifically to the 2021 ceremony. Beyoncé continued receiving nominations and awards afterward, so newer totals should not be substituted for the historical record described in the question. The number also refers to wins, not nominations.