A U.K. tabloid reports that Madonna is unhappy with M.I.A. after the British rapper flipped her middle finger during her Super Bowl performance Sunday.

Madge promised TV producers there would be no wardrobe malfunctionsor any violations of indecency rules, and is said to be very upset over M.I.A.'s gesture.

"Madonna wasn't impressed," a source told the British tabloid The Sun. "She prides herself on professionalism. M.I.A. did nothing similar in rehearsals. Nobody knew she was going to pull this stunt."

The source added, "Madonna wanted to put on a world-beating performance. But everyone ended up talking about this girl's middle finger."

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