Of all the bold faced names to tie to your brand the hottest one right now is princess-to-be, Kate Middleton. Nothing like a princess to officially cement your name on the map. Though she's worn Issa several times in the past, it was only after donning a sapphire blue (the same color as her engagement ring!) Issa dress for her official engagement announcement, that Middleton helped skyrocket the brand to a whole new level. Not only does Middleton have Prince William, she also has great taste.