March 09, 2016 07:15 PM

June, meet Mae!

Holly Williams received an early birthday present when she welcomed her second child, a daughter, with husband Chris Coleman on Tuesday, March 8, her rep confirmed to PEOPLE.

Lillie Mae Louise Coleman, who weighed in at 6 lbs., 15 oz., and measured 20 inches long, joins 17-month-old big sister Stella June.

“Two under 2! Every morning we grab our baby dolls and we practice, ‘baby love,’ ‘baby gentle,’ ‘baby kisses'” the musician, who turns 35 on Saturday, previously told PEOPLE.

Taylor Hill/Getty

Becky Fluke

Williams, the granddaughter of legendary singer Hank Williams and the daughter of Hank Williams Jr., showed off her baby bump when she stepped out for the CMAs in November.

“We’re [having a surprise]- we knew it was a girl the first time,” the White’s Mercantile owner told PEOPLE at the time. “Once I figured out that babies are easier than I somewhat originally thought — kind of! — I was like, ‘We don’t have to plan way in advance, we’re just going to figure it out.’ I’m thrilled with boy or girl.”

Williams and Coleman, a drummer, wed during a “magical” ceremony in Nashville in September 2009.

— Anya Leon with reporting by Sarah Michaud and Katie Kauss

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