Dixie Chicks member Emily Robinson welcomed baby girl Violet Isabel on Tues., Sept. 4!

“Mom and baby Violet are doing well and Dad couldn’t be happier,” Emily’s rep tells PEOPLE.

Violet is the first child for Emily and Court Yard Hounds musician and boyfriend Martin Strayer. The baby reportedly arrived at 3:01 a.m. weighing in at 8.5 lbs!

Emily also has twins Juliana Tex and Henry Benjamin, 7, and son Charles Augustus, 9, with ex-husband Charlie Robison.

Congratulations to the happy parents!

Already a mom of three, Emily Robison is having her first child with boyfriend Martin Strayer due in early September!

“She’s excited!” a rep told PEOPLE.

Emily, 39, is also mom to twins Juliana Tex and Henry Benjamin, 7, and son Charles Augustus, 9, with ex-husband Charlie Robison.

Congrats to the growing family!

– Lorraine Chow

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