A new chapter in Dixie Chicks member Natalie Maines' extensive divorce proceedings revolves around a fight over her unreleased music, Yahoo! reports. Maines' husband, Adrian Pasdar, is attempting to prevent her from releasing music, on the grounds that there may be something in the batch of songs that violates the confidentiality clause listed in the couple's prenuptial agreement.

According to Yahoo!, Pasdar is now asking courts for copies of the music in question, in order "to protect his rights under the confidentiality" of the prenup. His concerns come at time when the Chicks have been particularly prolific, collaborating with Taylor Swift for a track off the pop superstar's latest album called "Soon You'll Get Better," as well as announcing plans for their own project -- the group's first full-length album since 2006.

Earlier in 2019, however, Pasdar claimed that the couple's prenup agreement was invalid. In February, he sought a monthly payment of $60,503 from Maines in child and spousal support, as well as his attorney fees, because she provided their family's primary source of income during the marriage. He also claims that he is is owed retroactive child support to the tune of $451,783, per Yahoo!.

In March, Maines asked a court to validate the prenup and speed up divorce proceedings, asking a judge to bifurcate the issue. In other words, courts would decide the validity of the document separately from the rest of the divorce ruling.

"Respondent claims that the Prenuptial Agreement is invalid. Respondent claims he did not understand the terms of the Prenuptial Agreement, that he did not understand the legal effect of the Prenuptial Agreement, that the terms of the Prenuptial Agreement are presently unconscionable and that he did not have adequate knowledge of my property and financial obligations when he signed the Prenuptial Agreement," Maines stated at the time. "I disagree.”

Maines filed for divorce from Pasdar in mid-2017, citing "irreconcilable differences." The couple met at the wedding of Charlie Robison and Emily Robison Strayer, Maines' Dixie Chicks bandmate, in May of 1999, shortly after Maines' divorce from her college boyfriend, Michael Tarabay. Together, Maines and Pasdar have two sons, Jackson and Beckett.

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