There's no denying that Britney Spears is looking phenomenally fit these days and now her trainer, Tony Martinez, has given E! News the exclusive scoop on Brit's exercise regime. The answer? Summer beach workouts. Tony said, "I wanted her to have something at the beach. It's so calming and peaceful.

You can see the dolphins out there, and I try to make the exercises facing the ocean." Tony and Britney workout together two times a week and each session is about 30 to 40 minutes. So what, exactly, does a summer beach workout entail? Since Britney's day is so busy, Tony tries to maximizes her time by doing interval exercises that use her whole body. He packs two exercises within each one and always adds an abdominal component.

After each exercise Tony and Britney will play a game of five-point volleyball. And what happens if the pop star loses? Tony said, "She has to run to the ocean, and I want to se her touch the water and come back."