LATEST: Grammy-winning producer DALLAS AUSTIN pleaded guilty on Sunday (02JUL06) to cocaine charges in Dubai. Austin, who has worked with Madonna, Michael Jackson and Pink, faces up to four years in prison when he is sentenced on Tuesday (04JUL). During the short hearing Austin said, "I'm pleading guilty, but by mistake. "I had no knowledge and no intention of violating the laws of the United Arab Emirates." The songwriter, whose life story was loosely depicted in the 2002 movie DRUMLINE, was arrested 19 May (06) in Dubai's airport. He was charged with cocaine possession and has been held without bail at a police station. Austin was on his way to a three-day birthday bash for supermodel Naomi Campbell at a Dubai hotel.