Dixie Chicks lead singer Natalie Maines and her husband, actor Adrian Pasdar, reportedly are divorcing after 17 years of marriage.

TMZ.com said that Maines, 42, had made the filing, citing irreconcilable differences and asking for joint custody of their sons, Jackson Slade Pasdar, 16, and Beckett Finn Pasdar, who turns 13 on July 14.

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Neither Maines nor Pasdar, 52, who starred in NBC’s “Heroes” and plays the recurring role of Gen. Glenn Talbot on ABC’s “Agents of SHIELD,” has commented publicly.

Maines’ alternative-country band has won 10 Country Music Association Awards and 13 Grammy Awards.