A happy belated birthday to the most talented singing sensation ever to take the stage! American Idol’s true winner turned 18 yesterday, which means David’s of legal age to marry. So if you’ll excuse us, we need to step out and buy something in a little blue box. But is he the brilliant- or princess-cut type? Oh, who are we kidding — he’s BOTH. [Confessions of an ‘Idol’ Addict]