Kevin Winter/Getty Danny DeVito is overjoyed to be a grandfather and teach his kids lessons about parenthood. In a recent video shared by AARP, the It's Always Sunny in Philadelphia actor ...

Danny DeVito Found Out Daughter Lucy Was Pregnant 30 Minutes Before Performing on Broadway: 'I Just Burst into Tears' Rob McElhenney and Kaitlin Olson Celebrate 'American Treasure' Danny DeVito's ...