Zac Brown Band’s Clay Cook shared some pretty exciting news on Instagram Wednesday (1/24), announcing that he and his wife, Brooke, have a new baby on the way. Cook said the family’s newest addition will be arriving this summer, joining older brother Charlie, who’s already 14 months old. Clay also said the family couldn’t feel luckier to be growing their family.

Along with the announcement, Cook shared a picture of the family reading The Berenstain Bears’ book “New Baby,” saying, “Our book-loving kid has a new favorite. I think it’s safe to say he’s pretty excited about this one.”