For Caribbean beauty and singer Rihanna growing up in bikinis and frolicking on the beach were second nature. But that didn't make the pop diva 100 percent comfortable in her own skin -- going nude did! "The more I got naked, the more comfortable I felt. I just had to face my fear," she told the U.K.'s Women's Fitness magazine. "You always find something wrong, you always find something you’re uncomfortable with, and one thing turns into another and you get embarrassed and self-conscious about it." Once she knew her body, she could focus on what she wanted to improve in her cardio sessions with trainer Ary Nunez. Give yourself the workout boost you need by baring it all in front of the mirror. Really look at what body parts you want to tone and what parts are perfect just the way they are. Once you have a plan, you can set realistic goals to achieve your summer bikini bod.