fitbit for zumba?

would a fitbit caculate the calories burned when doing zumba?? How does it hook onto your cloths?

 i have one and i love it - love all the tracking and reports, etc.....i believe it does best for fwd motion - its basically a really fany pedometer - it slides onto just about anything - i wear mine on my shoe strings or on my bra strap...it helps give me a gauge to improve on.  

I really dont know how effective it would be for that but it definitely helps motivate me as far as my walking - every step counts.  it also tracks steps up like with stairs, etc. and how you sleep

 The calorie count on FitBit is really high.  It would be better to use a good heart rate monitor and base your calorie estimates on that.