Emily Robison and her boyfriend Martin Strayer are expecting a baby together!

A rep for the Dixie Chicks singer tells People that the baby is due in September, adding, “She’s excited!”

The baby will be the first for the couple and the fourth for Emily, who also has 7-year-old twins Juliana Tex and Henry Benjamin, as well as Charles Augustus, 9 1/2 with her ex-husband Charlie Robison.