Alison Krauss
As of 2018, she has won 27 Grammy Awards from 42 nominations, tying her for the second most awarded recipient alongside Quincy Jones, second only to classical conductor Georg Solti, who holds the record for most wins with 31. She is the most awarded singer and the most awarded female artist in Grammy history.
List of people who have won Academy, Emmy, Grammy, and Tony Awards
Audrey Hepburn (1929–1993), an actress, received her fourth distinct award posthumously in 1994. Between 1953 and 1994, Hepburn received a total of six awards. She was the fifth person to complete the feat and the first to do so posthumously. She was also the first winner to win two of their awards in consecutive awards shows (the 1994 Grammys were the first Grammys since her posthumous win at the 1993 Emmys). She is one of the only two EGOT winners (the other being Jonathan Tunick) to not win multiple awards in any of the four award fields.