Today, Rihanna turns 24, and to celebrate the singer's birthday, we've rounded up 10 of her most memorable red-carpet looks. She's certainly taken a "no holds barred" policy when it comes to dressing to the nines; thus, we've come to expect everything from sweet glamazon to downright skin-baring vixen. Most recently, she's stunned in two silky, svelte custom Giorgio Armani gowns, one at the Read more