Pop queen Madonna has set up a limited company in the UK called Semtex Girls - but refuses to tell anyone what the nature of its business is.

The singer uses the name to describe her three assistants.

She recently explained, "The Semtex Girl is a girl who is dynamic, a girl who explodes, who doesn't know the meaning of nine to five, a girl who is unstoppable and who doesn't take no for an answer. And has excellent taste.

"Guys can be Semtex Girls too."