Rihanna Silver Bikini Pictures in Hawaii

Rihanna slipped on a silver cutout suit for another afternoon in the Hawaiian sun today. She joined a group of friends for a boat ride after being spotted at the beach solo just yesterday. The singer has been lounging in sexy swimwear during her downtime on the tropical island, but she's showing even more skin in her latest ads. Rihanna posed in lingerie for her new Emporio Armani Underwear promos, which were just released. She's taking a break from making music while on vacation, though her "We Found Love" is still holding on to its number one status.