Country star Keith Urban has laughed off allegations he caused a stink in New York City by dumping sewage from his tourbus onto a Manhattan street.

Crew members working for Nicole Kidman's rocker husband are accused of emptying septic tanks from his official coach outside Big Apple venue Webster Hall, following a performance there last week.

A source tells the New York Post, "There was about 150 square feet of gunk, a half an inch thick, outside the main entrance. It was a literal s**t show."

Webster Hall owner Lon Ballinger claims his staff had to wait for the waste to dry up before they could take it to a dumping ground.

He tells the Post, "We didn't want to wash it into the sewer system. The clean-up process lasted 12 hours. Thankfully, it was a nice day, and so it all dried up. Keith put on a great show, and I'm pretty sure he had nothing to do with it, but this whole matter just stinks."

However, Urban's representative insists the mess had nothing to do with the singer or his entourage, maintaining, "It wasn't an official Keith Urban bus. We had none parked outside."

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(This news article provided by World Entertainment News Network)