The Dave Matthews Band have been accused of unloading 360 kilograms (800 pounds) of human waste from their tour bus onto a boat filled with passengers.
The state of Illinois is suing the band for violating state laws amid claims their driver drenched more than 100 people in sewage, after he emptied the septic tank through a grate into the Chicago river.
A spokesperson for the group says, "Our driver has stated that he was not involved in this incident."
He adds that the band "will continue to be co-operative in this investigation".
The SO MUCH TO SAY group are facing civil penalties of $70,000 (GBP39,000) for allegedly violating water pollution and public nuisance legislation.25/08/2004 17:24