Star Workout of Brooke Burke!

Celebrity Brooke Burke may not be 20-years-old anymore (she's 39) but by the way she looks, you'd never know it!  Brooke recently was featured in SHAPE magazine where she shared with readers how she stays in shape with a healthy diet, but also with her toning workout plan.  Her plan works by exercising 3-4 times a week, doing 3 sets of 15 reps of the following moves.
*Routine and pictures adapted from January issue of SHAPE magazine.

THE MOVES:
-Criss Cross Kick to work out your butt, legs and core.
Stand with feet shoulder-width apart, hands in fists under chin, and knees slightly bent.  Cross your right foot behind left, and bend knees, then kick left leg at hip height out to side.  Place left foot on the floor beside right and repeat!  Don't forget to switch directions!

-Plank with Knee Twist to work out butt, shoulders, arms, and core.
Get in plank position with shoulders aligned over wrists.  Bring left knee forward and to the right, then extend left leg straight back behind you as you raise your hips.  Return to the starting position and repeat.  Again, don't forget to switch directions!

-Ball Hip-Extension to work out butt, back and legs.  For this exercise you'll need a stablility ball!

Lie facedown with hips centered on a stability ball and legs extended behind you.  Place hands on the floor in front of you, shoulders aligned over wrists.  Raise legs so they're in line with torso, then lower legs and repeat!