Sir Elton John is convinced Madonna's career will be over after her current tour.

The Material Girl is currently performing shows across the world as part of her MDNA tour and Sir Elton turned the air blue during an Australian TV interview when he jumped to the defence of Lady Gaga, his son Zachary's godmother, over claims the singer copied Madonna's music.

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Elton John says Madonna's career is over

He tells music mogul Molly Meldrum on Australia's Sunday Night show, "Why is she such a nightmare? Sorry, her career is over. Her tour has been a disaster and it couldn't happen to a bigger c**t...

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What would Madonna say?

"If Madonna had any common sense she would have made a record like Ray Of Light and stayed away from the dance stuff and just been a great pop singer and make great pop records, which she does brilliantly.

"But no, she had to go and prove... she looks like a f**king fairground stripper."

PHOTOS: Madonna's love affair with fake weapons...

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  • Madonna concert - London

    Madonna performs on stage in Hyde Park, London, as part of her MDNA concert tour, Tuesday July 17, 2012. (AP Photo / Sean Dempsey, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

  • Madonna

    U.S. singer, Madonna, performs in Hyde Park, London, Tuesday, July 17, 2012. (AP Photo/Jonathan Short)

  • Madonna

    U.S. singer, Madonna, performs in Hyde Park, London, Tuesday, July 17, 2012. (AP Photo/Jonathan Short)

  • Madonna

    U.S. singer, Madonna, performs in Hyde Park, London, Tuesday, July 17, 2012. (AP Photo/Jonathan Short)

  • Madonna

    U.S. singer, Madonna, performs in Hyde Park, London, Tuesday, July 17, 2012. (AP Photo/Jonathan Short)

  • Madonna

    Pop superstar Madonna performs on stage during her concert at the King Baudouin stadium in Brussels, Thursday, July 12, 2012. (AP Photo/Yves Logghe)

  • Madonna

    Pop superstar Madonna performs on stage during her concert at the King Baudouin stadium in Brussels, Thursday, July 12, 2012. (AP Photo/Yves Logghe)

  • Madonna

    Pop superstar Madonna performs on stage during her concert at the King Baudouin stadium in Brussels, Thursday, July 12, 2012. (AP Photo/Yves Logghe)

  • Pop superstar Madonna performs on stage during her concert at the King Baudouin stadium in Brussels, Thursday, July 12, 2012. (AP Photo/Yves Logghe)

  • Madonna

    Pop superstar Madonna performs on stage during her concert at the King Baudouin stadium in Brussels, Thursday, July 12, 2012. (AP Photo/Yves Logghe)

  • Pop superstar Madonna performs with a gun on stage during her concert in Cologne, Germany, Tuesday, July 10, 2012. (AP Photo/Martin Meissner)