London: Singer Lady Gaga said she has become bankrupt after her recent world tour as it involved huge cost in staging the shows.

25-year-old Gaga admitted that her ‘Monster Ball’ tour’s production cost her fortune and her spending was more than her earning, reported a website.

"I put everything in the show, and I actually went bankrupt after the first extension of the 'Monster Ball'. And it was funny because I didn't know! And I remember I called everybody and said, 'Why is everyone saying I have no money? This is ridiculous, I have five number one singles' - and they said, 'Well, you're USD 3 million in debt',” said Gaga.

She had failed to curb her spending and has spent on buying memorabilia from London of the British royal family to decorate her home and remind her of her fans in England.

"Gaga has sent her staff to London to spend USD 16,502 on Princess Diana and Prince William and Kate Middleton wedding memorabilia. She wants to set up a room in her New York apartment dedicated to London and all her precious Little Monsters over there," said a source.