Remake your shape in 21 days with fashion's newest It Girl.

You may have noticed model Brooklyn Decker wearing an itsy bitsy bikini on the cover of Sports Illustrated's swimsuit edition. Or maybe you've spotted her on the arm of hubby Andy Roddick.

Now, Decker has teamed up with ELLE for a 21-day ELLE Make Better shape-up plan to revamp your body--and your wardrobe. The three-DVD series ($44.95) is divided into 25-minute cardio, yoga and sculpting routines that you can mix and match. Plus, each DVD comes fully loaded with bonus fashion and beauty tips. From shopping your closet to one-minute toning moves to beauty superfoods, it's like having an arsenal of experts at your beck and call.

We were surprised at how fresh and relatable Decker was--she wobbled right along with us. And yes, staring at her model abs and killer legs inspired us to work harder during intense, drill-style intervals.

Want a supermodel body? (Of course you do.) Get the DVDs here.

You'll be runway ready in no time.