London: Pop superstar Madonna is upset that her song "Four minutes to save the world" has been cut almost by a quarter before it was aired on US radio. The song was almost pared down to three minutes," mirror.co.uk reports.

She angrily said: "It wasn't my idea. That s not enough time to save the world." Madonna is currently doing promotional work for her upcoming album "Hard Candy".

She is also working overtime to dispel rumours that she is having marriage problems with her husband, British director Guy Ritchie.