Linda Perhacs (born 21 September 1943)[1] is an American psychedelic folk singer, who released her first album, Parallelograms, in 1970 to scant notice or sales.

[2] The album was rediscovered by record enthusiasts and reissued numerous times beginning in 1998, growing in popularity with the rise of the New Weird America movement and the Internet.

[5] In the late 1960s, Perhacs relocated to Topanga Canyon and worked as a dental hygienist in Beverly Hills under a professor she had met while on a student scholarship at the University of Southern California.

[6] One of her dental clients, Oscar-winning film composer Leonard Rosenman, was impressed by one of her demos and brought her into a studio during 1969–1970, producing her first album, Parallelograms.

Co-produced by Perhacs, Perdomo and Pat Sansone (of Wilco and the Autumn Defense), it features collaborations with artists including Banhart, Pritchard, Holter, Nels Cline and Durga McBroom.