Dixie Chicks star Emily Robison has divorced her country singer husband Charlie Robison.According to reports, the couple's divorce proceedings were finalised on Wednesday, after Charlie filed for the split in January.One court document states the pair's marriage had "become insupportable because of discord or conflict of personalities."A spokesperson for Charlie Robison says the pair "remain close friends and their family is the priority and will continue to be."The former couple married in 1999 and share three children: Charles Augustus, five, and three-year-old twins Julianna Tex and Henry Benjamin.

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