Lady Antebellum's collective family just grew by 10 tiny fingers and 10 tiny toes. The trio's Dave Haywood welcomed his first child with wife Kelli Cashiola Haywood on Sunday (Sept. 7).

The couple's bundle of joy, Cash Van Haywood, even got an official welcome to the world from the band:

'Cash' comes from Kelli's maiden name, Cashiola, while Van is Dave's father's name.  Baby Cash -- who weighed in at 7 pounds -- arrived a little earlier than expected, so Lady Antebellum had to cancel their Sunday night show at Allegan County Fair in Michigan in order for Haywood to be with his family.

Thankfully, even before Cash's arrival, the guitarist and his wife were in full-on baby mode. “We’ve been trying to read and prepare and talk and think through every scenario for the delivery and the labor and how we want to try to be as parents,” Haywood told People recently. “We know when the moment happens, all hell is going to break loose.”

Lucky for Haywood, he had a baby to 'test-drive' prior to Cash's arrival. He admitted he got to try diapering on Hillary Scott's daughter, Eisele Kay.

Haywood has a little time to get used to his new role as a daddy, as the trio's next show isn't until Sept. 28 in the Dominican Republic. After that, they'll be extremely busy promoting their new album, '747,' which drops on. Sept. 30.

See Dave Haywood's Yearbook Photo