Williamson was born in the suburbs of Dallas, and began playing music while a student at the University of Texas at Austin.

[9][10] Following Williamson's move from Austin to Los Angeles, her third album, Cosmic Wink (2018) was released on the label Mexican Summer.

[11][12] On February 26, 2020, Williamson announced her fourth studio album, Sorceress, and released its first single, "Wind on Tin".

[13][14] Sorceress was released on May 15, 2020, on Mexican Summer[15][16][17] and received general praise,[18][19][20] with a positive critic score of 74 on review aggregator sites Metacritic and Album of the Year.

[26] In July 2022, Williamson announced Plains, a collaboration project with singer-songwriter Katie Crutchfield of Waxahatchee.