Not since Madonna lived in London for 10 years has an American’s fake British accent provoked as many howls of laughter as what is now coming out of Tom Cruise’s mouth — which sources say sounds like a messy mix of Mary Poppins and Margaret Thatcher!

“The talk of London is Tom Cruise’s new, very fake accent,” spills a spy exclusively to In Touch, who got an earful of the 61-year-old superstar. “It’s worse than the silly one Madonna adopted when she lived there. To his face, everyone nods and smiles, but behind Tom’s back, they’re laughing. But he’s Tom Cruise — so who’s going to tell him?”

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