Fatburn, such as speedwalking on the treadmill for 1 hour every morning on an empty stomach followed by a protein shake and then a light lunch. Keep the cals clean, low fat or low carb (personally I like low fat). Of course a good ab workout should be done too. Try doing a couple different exercises like hanging knee raises, bicycle abs, crunches on a ball, etc. I like to do abs to failure and total at least 100 reps.