Dixie Chicks star Emily Robison gave birth to a baby girl on Tuesday morning, her first child with Martin Strayer, who plays guitars and piano in her new band Court Yard Hounds.

Violet Isabel is Robison's fourth child; the 40-year old singer has three other kids with her ex-husband, Charlie Robison -- seven-year-old twins Juliana and Henry, and Charles, nine.

Robison's new band is a side project she shares with sister and fellow Dixie Chick Martie Maguire.