Good Charlotte Guitarist Is Dad Again
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Martin, 31, tweeted that he and Linzi named the baby Zander Jace Martin. Baby Zander was born on Friday, Sept. 14.
Zander's arrival makes three-year-old Dreavyn Kingslee Martin a big brother.
Billy and Linzi married in 2008, after an eight-year courtship.
Later this week, Good Charlotte will head down under for select dates in Australia. Included in the trip will be a headlining set at the Fat As Butter festival.
Good Charlotte are rumored to begin work on a new album sometime in 2013.