The "Kings of Leon" brothers are at it again, expanding their kingdom with a new little baby on the way.

The band's drummer Nathan Followill, 33, announced Wednesday that he and his wife, singer Jessie Baylin, are expecting a baby.

The announcement comes on the heels of his younger brother and bandmate Caleb Followill and wife Lily Aldridge welcoming their first child, daughter Dixie Pearl on June 21.

"I can proudly announce that me & the lovely @JessieBaylin are expecting our first child. I'm beyond excited/anxious. Life is beautiful," he tweeted to fans.

The band's spokesman, Ken Weinstein, told E! News that the couple is due in December.

Not wanting to be left behind from it all, the younger Followill brother, Jared, 25, is set to soon wed his model girlfriend Martha Patterson. 

Kings of Leon's bass guitarist Jared Followill tweeted his excitement about his engagement to beautiful model girlfriend Martha Patterson in May. "It's true! I'm engaged! CANNOT wait to finally lose my virginity," he posted on his Twitter account.

Jared reportedly popped the question to Patterson on April 11. His representative confirmed the news of the engagement to celebrity website Just Jared. "Yes, it's true! Jared proposed to Martha on April 11 at his home in Nashville and we're all excited for the newly engaged couple," the representative said.

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