Tomorrow night in Rome, 600 lucky duckies will be treated to a unique dance extravaganza at the Colosseo, where Roberto Bolle will rawk that perfect body for a good cause -- to benefit the good people at FAI, the Italian Fund for the Environment.Tickets cost a cool 360 euro, about 550 dollars. But then, it's for a good cause. And frankly, this is pretty priceless, if you ask OC.