Kelly Rowland Works On Her Ab-Fab Fitness

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Kelly Rowland has one of the most enviable sets of abs in Tinseltown.

The singer, who made a body-baring splash on this month's cover of Shape, showed how she carves those muscles.

It's all thanks to trainer Jeanette Jenkins! Rowland says the trainer's star plank (which she easily executed above) is one of her favorite moves from Jenkins' latest video.

"The Hollywood Trainer" definitely gets the Destiny's Child diva's seal of approval -- the two teamed up for a workout DVD, "Sexy Abs Cardio Sculpt," which will be released Oct. 1.

Those abs are enough "Motivation" for us. We're sold, Kelly!

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