Jessie James Decker says baby No. 3 is another boy.

The 29-year-old pregnant singer announced her unborn child's sex in a cute Instagram video with her husband, NFL star Eric Decker, on Monday.

"Baby Decker number 3 is a ...." she captioned the post.

The clip shows Jessie and Eric, who already share 3-year-old daughter Vivianne Rose and 2-year-old son Eric Thomas, opening a box filled with blue balloons as their children look on.

"You ready to figure out who's in mommy's tummy?" Jessie asks her kids. "Ready... set... It's a boy! It's a baby boy!"

Jessie announced her pregnancy earlier this month, telling fans she's "so excited" to be expecting again.

"Eric and I are so excited to share with y'all that we are expecting baby Decker number 3!" she wrote alongside a video Oct. 9.

"As you can see Viv is so happy and Bub doesn't quite know what's going on but we are over the moon and feel so blessed and can't wait to meet this little one end of march," she added.

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Jessie and Eric married in June 2013, and have since starred on the E! series "Eric & Jessie: Game On."

Jessie last released the album Southern Girl City Lights this month, while Eric plays for the Tennessee Titans.