Kelly Osbourne has admitted to suffering from serious anxiety since accepting the role of Mama Morton in a West End production of Chicago.

“I’m absolutely bricking it because the only theatre I have ever done before this was my school play - and I was a windmill!” Kelly told The Sun newspaper.

She added: “The biggest problem I have is everyone who has seen the film now thinks Mama Morton is a big black woman because Queen Latifah played her.”