Russell Brand has been banned from making certain jokes at the MTV Video Music Awards.
The British comic, who is renowned for his outrageous humour, is presenting this year's ceremony and has been warned by show bosses there are specific things he definitely can't say.
He explained: "I've been warned when I'm presenting there are two things I'm never allowed to say. "One - **** and two - Scientology.
"There is one sentence that could join both of those words but I'm going to try and not say it."
Russell is worried he will not be able to control his mischievous instincts. He added to Britain's Daily Mirror newspaper: "I have a real problem when people tell me not to do something.
"When I was going to meet the Queen of England, the protocol people told me how to bow, not to curtsy and not to speak until I was spoken to.
"But all I could think of was, 'Grab her t*t.' " The 'Forgetting Sarah Marshall' star also claimed he hates not being famous in America. The 33-year-old funnyman, who has long backcombed locks, said: "People say you must enjoy it that no one knows you're famous in America but I hate it.
"Without fame, this haircut makes me look like someone with a mental illness. I want everyone to know who I am. I have to carry a laptop around with me so I can explain I am a celebrity."
The MTV Video Music Awards take place in Los Angeles in September.