The 39-year-old country singer and Morgane – who performs background, harmony, and duet vocals in Chris‘s band – made the announcement via her Instagram on Monday (October 30).
“14 years, 2 babies, & 2 more on the way,” she captioned a sweet black-and-white photo of the duo. “Happy 10 year anniversary babe! You make my whole world go round.”
Chris and Morgane are already parents to a son and daughter.
The couple most recently stepped out together for the 2017 CMT Artists of the Year Awards. (See photos here.)
Congrats to the happy parents!