Looking to step up her fitness game, Kelly Brook was spotted at Raynes Park, London to introduce her new workout. The UK hottie teamed up with Reebok and Jukari Fit to Flex to bring a new level of fitness to ladies all over the world.

And to kick things off, Kelly assembled a Flex Mob of 100 women to help her show how easy and enjoyable the workout really is. In related news, Kelly will be appearing alongside Elisabeth Shue, Christopher Lloyd, and Jerry OConnell in Piranha 3-D later this year.