Fergie is still mortified by the notorious incident which saw her accidentally urinate on stage. The star, whose real name is Stacy Ann Ferguson, confessed to her embarrassment on British TV series The Dame Edna Show last night, and blamed the incident during a performance San Diego’s Street Scene festival in California on a lack of toilet-going opportunities.She says, “We had to rush onstage before I had the chance to go to the restroom. It was a very embarrassing night for me.”