Madonna Points Gun to Head on Stage in London

Madonna. Is she a revolutionary, provocative entertainer? Or an aging act desperate for attention?

This question has been posed over the last couple weeks, as the Material Girl has gone to unusually extreme lengths on stage during various concerts.

She mooned a crowd in Rome. She purposely slipped a nip in Istanbul. She cried in Berlin. She's facing a lawsuit for flashing a Swastika over the face of a politician in Paris.

And, last night in London, she pulled out a gun and pointed it at her cranium during the single "Gang Bang."

Following the controversy over Lindsay Lohan's recent gun-toting spread - the national suicide hotline referred to that act as "grossly irresponsible," considering the troubled individuals who pull the trigger in real life - it's safe to assume Madonna will also come under fire now for the maneuver.