Britney Spears is the master of reinvention. Which is why she is on our scorching May cover. For someone who grew up in the public eye, she has had her share of ups and downs. But now the pop diva has a Vegas show of her own. Today, she is in the best shape of her life and she does it all without a personal trainer. We give you a sneak peek in to her fitness diary. Brit considers dance rehearsals her cardio go-to and is a fan of swimming, hiking, tennis and yoga. 更多
