Flamenco Dress

I finally found a Flamenco dress that I absolutely love! I want to be able to wear it to my Winter formal in 3 weeks. But my only problem is that I need to slim down my love handles. I workout and I'm a healthy person. Do you ladies have any tips on how I could workout my obleaks and core in an effective way? I feel that right now these love handles of mine just stick out a little too far to fully pull off the dress.