Woohoo! That totally is exercising. Exercise is being active. I don't know about the whole singing part. I was a choir major in high school, so two hours of singing a day didn't do much for me! lol. Probably the holding in your stomach for good breathing and the standing the entire time... that's pretty good exercise I guess? I don't know. lol. If you were performing then YES that's good exercise. Dancing and singing is the hardest thing you can do.
get a step counter- they are fairly inexpensive, that way you can track how many steps you take in a day and i am sure online there is a formula to see how many calories you burned ;]
I think that anything that keeps you active and/or where you can feel a strain somewhere is excercise.
I know that when you sing, it makes you kind of tighten up your stomach.
At least that's what it does for me anyways. (:
<3 Sarah
Good Job! Keep up the good work. And i dont know about singing being an exercise either, although maybe they were the same people that said eating was an excersise too, right? lol. I heard that somewhere.
i bought some work out dvds, clubland & ministry of sound it really gets you sweating & out of breath ive lost over 60 pounds so far so they must be doing something right lol