Alan Jackson is now a grandpa! His daughter, Ali, and her husband welcomed their first child, son Jackson Alvie Bradshaw Tuesday, just in time for Alan and Denise's yesterday (Thursday, December 15th). Alan shared a picture of the new grandparents holding Jackson on social media yesterday saying, "Denise and I are celebrating our 43rd wedding anniversary with our new grandson Jackson Alvie Bradshaw . . . So happy that this little guy has made us grandparents!"