The Beach Body Cinch and Sculpt Circuit Workout

Sweat + Slim Cardio Option 1

Jot down this magic number: 90. That's your totally­ doable minimum target of weekly cardio minutes to hit along with the Cinch + Sculpt workout. (Shoot for three 30-minute-or-more sessions or divvy them up however you like; your Zumba DVD counts!) To help you boost the calories burned during those minutes, we tapped Rilinger to share her favorite flab-melting interval workouts and created a hot high-low playlist to get you pumped to push your pace. Four weeks from now -- when you're 10 pounds trimmer -- you can even tote the tunes to the beach!

Cardio Option 1: Mix It Up
Not a clock watcher? Download this fresh 30-minute workout playlist created by Deekron, a DJ and producer of MotionTraxx.com, to inspire you to speed up during every other song.

Warm up
"Is Anybody Out There?" - K'naan, featuring Nelly Furtado
Steady
"The One That Got Away" - Katy Perry, featuring B.o.B.
Speedy
"Stronger (What Doesn't Kill You)" - Kelly Clarkson
Steady
"Good Girl" - Carrie Underwood
Speedy
"Glad You Came" (Alex Gaudino Radio Full Vocal) - The Wanted
Steady
"Hang It Up" - The Ting Tings
Speedy
"Hangover" (Jump Smokers Extended Remix) -Taio Cruz, featuring Flo Rida
Cool down
"Thank You" - Estelle

Download the playlist here