The answer is YES!! The more intense, the better, the more you sweat and all that, the better. Usually if you dance (guess it would be modern, but if you don't know what I'm talking about, then probably a choreographed routine like Britney Spears) will burn about 600-700 calories and hour. And 1 pound=3500calories, so if you danced for an hour a day for 5 days, and kept your normal eating pattern, you would lose about a pound.