The 33-year-old star, who recently seperated from rugby player Danny Cipriani, seems to be putting all her efforts into getting fit, using personal trainer Ashley Borden to whip her into shape.
LA based PR Ashley tweeted the picture of Kelly pumping iron, accompanied by the caption: '@IAMKELLYBROOK first time doing deadlifts! U r so easy to coach :) great job.'
Ashley has previously worked with hot celebrity bodies Reese Witherspoon, Mady Moore and Ryan Gosling (say no more!)
But it hasn't been all work no play for the Essex born beauty, with her being pictured out and about with Katherine Jenkins ex-fiance Gethin Jones, 35, sparking rumours that the two may be dating.
However some have cast doubt on these claims, as Kelly only recently admitted she hasn't been single for more than a few weeks since she was 18 and wishes she'd spent more time without a boyfriend.
The model, who's new lingerie collection for New Look will be released ahead of Christmas, has been posting regular pictures of her adventures in LA on her Instagram page, which is sure to make everyone shivering back home green with envy!