The world finally found out the names of Beyonce and Jay-Z's twins today. TMZ reports that the company owned by the pair filed legal documents June 26 to secure rights to the names Rumi and Sir Carter. The companyalso filed the same docs for the name Blue Ivy earlier this year. The trademarks cover a bevy of items including fragrances, cosmetics, key chains, baby teething rings, strollers, mugs, water bottles, hair ribbons, playing cards, tote bags, sports balls, rattles and novelty items. Welcome to the Carter empire,