There's another little Dixie chicklette on the way.

Martie Maguire, one third of the Dixie Chicks, is expecting baby number 3 with husband Gareth. She confirmed the pregnancy to PEOPLE in Texas yesterday.

"I'm very excited," says Maguire."We know what it is - it's a girl."

The little chicklette will join twin girls Kathleen Emilie and Eva Ruth, who were born in 2004. "Carrying one instead of two will be much easier," Maquire joked.

[PEOPLE]