The drummer's wife, singer Jessie Baylin, gave birth to a daughter, named Violet Marlowe on Wednesday afternoonin Nashville, Tennessee and Followill took to Twitter on Thursday to gush about the happy news.
He writes, "I can proudly announce the birth of my sweet angel Violet Marlowe Followill. My heart has been stollen (sic) and it feels so good."
This is the latest baby to join the Followill clan - Nathan's musician brother Caleb welcomed his first child, Dixie Pearl, with model Lily Aldridge earlier this year, and his guitarist sibling Matthew and wife Johanna Bennett became parents to a son called Knox in 2011.
Followill and Baylin wed in 2009.