Reba McEntire‘s son Shelby Blackstock and his wife, Marissa Blackstock, have welcomed their first baby. “After everything it took to get here, we finally get to call ourselves mom and dad,” Shelby, 36, announced via his Instagram Story on Wednesday, October 21. “We’ve been taking these first few weeks just for us, and there’s nowhere else we’d rather be.” The race car driver shared a heartwarming photo of himself cradling his newborn son, whose name is Shelby Archer “Archie” McEntire Blackstock. A video clip shared via Shelby’s Instagram Story showed the baby wearing a slee...