Kings Of Leon rocker Nathan Followill is following his bandmate brother Caleb into fatherhood - his singer wife Jessie Baylin is pregnant.

The drummer turned 33 on Tuesday and he had an extra special reason to celebrate.

Announcing the news on his Twitter.com page on Wednesday, he writes, "I can proudly announce that me & the lovely @JessieBaylin are expecting our first child. I'm beyond excited/anxious. Life is beautiful."

The couple wed in 2009 and will become first-time parents in December.

The father-to-be's younger brother Caleb Followill's model wife Lily Aldridge gave birth to the couple's first child, Dixie Pearl, last week.

And the Followills' bandmate brother Jared also has family on his mind - he proposed to model Martha Patterson earlier this year.