The crew on Madonna's 'Sticky and Sweet' tour have threatened to quit after they were put up in a cheap hotel in comparison to the pop star's luxury accommodation.

Many of the 250 entourage on the world tour were upset after they were flown to Nice on a low cost airline, and then put up in a #50-a-night hotel, while the 'Give It To Me' singer and her family flew in a private jet and stayed in a 11th century chateau.

An insider told the Daily Mirror: "Everyone is absolutely furious with her and some of them want to walk out of the tour. They feel they are being treated like second-class citizens, despite all their hard work over the last few months."

Along with her own helicopter, Madonna also has 12 staff on hand, which includes a chef, a six-member beauty team, chiropractor and masseuse.

A source said: "Trouble has been brewing for a few months in the Madonna camp, especially since all the claims that her marriage was in crisis.

"Now to make matters worse, they are being forced to stay in horrible places and fly on cheap low-cost flights, while she has the lap of luxury. Several are already talking about walking if things don't improve."