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OTRC: Emily Robison, of the Dixie Chicks, expecting 4th child

Emily Robison appears in an undated photo from the Dixie Chicks' official Facebook page. (Facebook.com/dixiechicks)

Emily Robison, of the Dixie Chicks and Court Yard Hounds, is expecting her 4th child with boyfriend Martin Strayer.

The 39-year-old musician's rep confirmed the news to People magazine, adding that Robison is "excited" for the addition. The baby is due in early September.

Robison is also a mom to 7-year-old twins Juliana Tex and Harry Benjamin and 9-year-old son Charles Augustus, with ex-husband, country singer Charlie Robison.

Robison is a founding member of the female country band the Dixie Chicks, where she plays banjo, guitar, bass, mandolin, accordion, sitar and dobro. She also sings backing vocals and is the lead singer of the band Court Yard Hounds.

Her Dixie Chicks band mates Natalie Maines and Martie Maguire are moms to two sons and three daughters, respectively.

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