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A right-wing French political party has threatened to sue pop icon Madonna because the singer showed a video of the party's leader with a swastika on her forehead during a concert in Paris on Saturday.

The party leader, Marine Le Pen, is briefly pictured in the video during a montage in which famous faces - or parts of faces - morph one into the next. Soon after Le Pen's face flashes up with the Nazi swastika on her forehead, the Material Girl's face follows with Hitler's mustache.

Le Pen, who took over the party from her father, Jean Marie Le Pen, last year is known for her controversial views on limiting Muslim immigration in France.

The video has been shown at other concerts on the singer's tour, and the party has expressed its outrage before, warning that it would take action if the video were shown in France. Madonna played it for her audience on Saturday at the Stade de France.

"The montage that has gotten her in this heap of trouble is one of many, many provocative images that she has," said Shirley Halperin, music editor for The Hollywood Reporter. "It's kind of shining a harsh light on what she sees as the injustices of the world."

"Madonna's whole MO has been to be provocative to get a dialogue going," Halperin said.

She also flashed her nipple and buttocks at the audience - and it wasn't the first time.

At a concert in Istanbul, Turkey, on June 7, the 53-year-old proudly flashed her nipple on stage in front of 55,000 screaming fans. She followed up by dropping her pants and showing fans her g-string clad buttocks during a concert in Rome.

Madonna appears to be in war of words with Lady Gaga, the pop star whose dress style and music are often compared to her own.

This feud began in January when Madonna dissed Lady Gaga's "Born This Way" - a sort of-sound-alike track to her own 1989 composition, "Express Yourself" - and described it as "reductive" to ABC News' Cynthia McFadden.

Then, during a recent concert rehearsal in Israel, Madonna was caught on video performing "Express Yourself," before transitioning into Lady Gaga's "Born This Way," complete with the sound of a revving motorcycle that is Gaga's trademark.

At a concert in New Zealand, Gaga responded to Madonna for stirring things up: "It sometimes makes people feel better about themselves, to put other people down, or make fun of them, or maybe make mockery of their work, and that doesn't make me feel good at all," she said.

It's no secret that the "Poker Face" singer admires Madonna; she has spoken of her regard for the pop icon.

Last year, when a Belgian magazine's reporter asked Madonna about her fans, including Lady Gaga, the singer replied, according to the magazine: "I have no comment on her obsessions related to me, because I do not know if it is based on something profound or superficial."

Some have speculated that Madonna's seemingly over-the-top behavior is designed to drum up publicity for her career while others contend it is just the "Material Girl" being herself.

"For the last 25 or 30 years she has always mixed music with controversy but it's never been controversy for the sake of controversy," said ABC News consultant Howard Bragman of Reputation.com. "It's inevitable that when Madonna generates controversy she's making a point about something."