Elton John

Elton John is ready for another round of sparring with Madonna.

The acid-tongued music legend took a shot at Madonna on Australian TV, calling her a "nightmare" whose "career is over."

Even the mention of Madonna's name sent John into a rant. "Her tour has been a disaster and it couldn't happen to a bigger c---." The tour has been fraught with controversy. Madonna has repeatedly flashed her breasts while performing, and a conservative French political party threatened to sue the singer for showing a video of leader Marine Le Pen with a swastika on her forehead during a concert in Paris. Additionally, Madge was booed during a Paris concert when she left the stage after just 45 minutes.

Madonna booed in Paris after 45-minute concert

Elton also took the opportunity to defend Lady Gaga, the godmother to his and husband David Furnish's son. "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---ing fairground stripper. She's been horrible to Gaga."

Whose side are you on?