Sacha Baron Cohen has revealed he accidentally had a go at Madonna on the phone recently.

The comedian received a call from the pop superstar, who reportedly wanted to collaborate on an upcoming project with him. However, Baron Cohen assumed it was a wind-up, and consequently told her where to go.

"I got a call from someone claiming to be Madonna," he told Loaded. "I thought it was a prank so I proceeded to totally insult the woman on the end of the line."