If you want to get into shape and find the best lower abs moves sure to sculpt a flat stomach, you won't be surprised to find out, you can't really get a six pack muscles overnight. You can, however, carve your tummy in a couple of weeks with the core strengthening exercises in this ab workout plan. If it’s a sleek, defined midriff you’re after, then you need to get strategic. You've been obsessing over your abs for almost two decades. We have the best ab workouts for women!