Jason Aldean and Brittany Kerr are going to be parents again! The couple is expecting their second child, only seven months after welcoming their son Memphis [1]. The country singer announced the exciting news by sharing an adorable picture of their 7-month-old wearing a "Big Brother" onesie, writing, "Sup everybody . . . guess who is gonna be a BIG brother! #thisdude #aldeanpartyof6" This will be the fourth child for Jason who is also a dad to daughters, Keeley, 15, and Kendyl, 10, from a previous marriage. Congrats to the couple on their growing family!