We are happy to announce that a new city was just added to the "Sticky & Sweet Tour" itinerary.

Madonna will perform at Mexico City's Foro Sol on Saturday, November 29. Tickets will go on sale on Wednesday, Jun 25, at 11am Local Time, while a devoted fan club presale will start on Thursday, June 19, at 11am, LOCAL TIME.

As part of her 'Sticky & Sweet' Tour, Madonna will perform at Vienna's Donauinsel on Tuesday, September 23. Tickets will go on sale June 23 at 10am Local time.

If you're a member of Madonna's Official Fan Club, please note that a devoted presale will start on Wednesday, June 18 at 10am LOCAL TIME.

Pharrell Williams admitted he reduced Madonna to a sobbing wreck while working on her recent album 'Hard Candy'.

The producer said he made the icon cry like a baby during recording sessions for the record.

"I totally made her cry like. Like a baby. I had to get her a towel," he told Shortlist. "We were alone recording the album and she kept talking a lot of rubbish, so I shouted a lot of rubbish and she started crying her eyes out."

The N.E.R.D man admitted he had been quite nasty to Madonna, but said he had no plans to make their scrap public until the singer spoke about it herself.

"I just said some really nasty stuff, I guess. And yeah, she cried for a really long time actually," he said. "To be honest I can't believe she told someone about it. The whole situation was quite intense. It's totally weird to make Madonna sob, but even stranger when she tells everyone, 'Pharrell made me cry'.

...Christopher Ciccone's "extraordinary" story has been the subject of much hype in recent months, with the industry anticipating a mystery memoir.

Simon & Schuster have now unmasked the writer, who has previously worked closely with the singer as a creative advisor for her live show.

"Life With My Sister Madonna" will have a first print run of 350,000 in July and the publishers expect great things of the book.

"Ciccone's extraordinary memoir is based on his life and 47 years of growing up with and working with his sister - the most famous woman in the world", they said.

Ciccone and his sister are not said to be close anymore, according to the star's spokeswoman, Liz Rosenberg.

Speaking about the book, she said: "Madonna has not cooperated with any biography about herself."

Duran Duran bassist John Taylor has accused Madonna of copying their ideas by installing Justin Timberlake and Timbaland as producers on her new album, 'Hard Candy'.

It's the same partnership that worked on Duran Duran's 2007 album 'Red Carpet Massacre', which entered the UK charts at number 44.

Taylor said that he wasn't surprised to see Madonna employ both artists but claimed it was their idea.

"It wouldn't be the first time Madonna's copied us. She's been doing it for years," he told the Daily Star.