Dio is metal and if you're as big of fans as we are, then you'll want to get one of these super collectable Dio ugly Christmas sweaters before they sell out. Dio is a American musical icon, and our Dio ugly Christmas sweaters are licensed and endorsed by the Estate of Ronnie James Dio. Everyone wants to rock out during the holiday season, and when we rock we rock the halls! The holy diver himself, Santa, listens to Dio when he's out on Christmas Eve in his magical sleigh traveling the world and delivering all the good boys and girls killer presents that will delight them on Christmas morning.