Madonna's upcoming Sticky + Sweet world tour has been criticised by environmental groups - for not taking enough eco-friendly precautions.
The pop superstar kicks off her series of live dates in Cardiff, Wales on Saturday (23Aug08) night.
And green activists have slammed the singer for the massive carbon footprint they claim will be created by the tour.
Madonna's 49-date trek will see 250 staff members - including nine wardrobe assistants, 12 seamstresses, a personal trainer and a masseuse - 30 wardrobe trunks and the tour's stage set flown around the world.
And experts from predict that the trek will produce more than 1,500 tons of carbon emissions.
John Buckley from the website insists that Madonna's team should have done more to protect the environment.
He says, "This is a massive amount of carbon emissions even for a top celebrity icon.
"However, these emissions will be swamped by those caused by the crowds of concertgoers."
The Holiday hitmaker headlined the Live Earth concert in London last year (07) where she pledged her commitment to saving the planet.