[1] Cook, "the daughter of a hillbilly singer married to a moonshiner who played his upright bass while in a prison band",[2] was "virtually unknown to the pop masses" before she made a debut appearance on the Late Show with David Letterman in June 2012.

He honed his skills playing upright bass in the Atlanta Federal Penitentiary prison band while serving time for running moonshine.

Elizabeth was onstage with them when she was 4, singing material like songwriter John Schweers' "Daydreams About Night Things", a 1975 hit for Ronnie Milsap.

Cook graduated from Georgia Southern University in 1996 with dual degrees in Accounting and Computer Information Systems.

Cook toured in America, as well as in South Korea, Japan, Norway, Sweden, Poland, France and the UK.

She toured the UK in support of Welder, performing 18 dates with her then-husband, guitarist and songwriter Tim Carroll, and her upright bass player Bones Hillman, formerly of Midnight Oil.

[10] At the suggestion of Paul Shaffer, Cook was invited in August 2011 to be a guest on Late Show with David Letterman, where she discussed satellite radio and growing up in Florida.

She considered starring in a CBS sitcom about a single mother whose life is disrupted by the arrival of her criminal father, but the show never came to fruition.

American Songwriter notes that they sang covers of Townes Van Zandt's "Pancho and Lefty" and "Tecumseh Valley".

On June 2, 2014, she appeared a fourth time on Late Show with David Letterman, performing Lou Reed's "Pale Blue Eyes".