Burn 200 calories a day from singing for an hour.

A person weighs 150 pounds will burn approximately 100 calories singing for an hour while sitting down, and a 200-pound individual will burn about 140 calories. Stand up to belt out those tunes and the calories burned increase to 140 for somebody weighs 150 pounds and 180 for a 200-pound person. Make that 500, and it’s only a week per lb of fat. If you were sure that you were actually burning 200 calories then yes it would be enough to lose weight over time.