U.S. pop singer Madonna performs during a concert for her MDNA world tour at the Stade de France Stadium in Saint-Denis, near Paris, July 14, 2012.(Reuters/Benoit Tessier)

Pop star Madonna treated fans to an intimate show at Paris' famed Olympia theatre on Thursday, voicing her love for a France that is open to minorities and artists and reinterpreting "Je t'aime moi non plus," a song laced with sexual innuendo.

Tickets for the surprise show - a last-minute addition to Madonna's "MDNA" tour - were offered first to members of her fan club and sold out within minutes. Some people began gathering outside the Olympia as early as Wednesday for the show, and anticipation was running high.

In the end, reaction was mixed and some in the audience voiced disappointment at the show's length, a mere 45 minutes. A few called for refunds as they left the 2,700-seat theatre, Paris' oldest surviving music hall which has welcomed iconic stars from Edith Piaf and Jacques Brel to the Rolling Stones.

The concert was expected to have a political overtone to it, and Madonna started off on a rebellious note.

"I have a special affinity with France, and I have for many years," the pop star shouted at the start. "It could go all the way to Napoleon because I think of myself as a revolutionary."

Yet there was no repeat of the performance she gave at the 80,000-seat Stade de France on July 14, which angered France's far right party leader Marine Le Pen by showing a picture of her with a swastika superimposed on her face.

France's National Front has since announced it will sue her.

On Thursday, Madonna offered only veiled criticism of the party's anti-immigrant stance, paying homage to a France which she said once "opened its arms to minorities."

"I know that I have made a certain Marine Le Pen very angry with me," she said, adding that her intention was not to make enemies. "We are entering some very scary times in the world. People are afraid, and what happens when people are afraid? They say 'get out! You're the reason. You're the problem. You're to blame,'" she told the audience.

(Agencies)