The 'Girl Gone Wild' singer is currently gearing up to launch the upcoming tour in Tel Aviv, Israel on May 31.
Fans have now taken photos of the star's rehearsal on stage at the Ramat Gan Stadium.
WENN reports that one sequence of the show finds the singer brandishing a pistol and aiming into the crowd, while her dancers wield machine guns and rifles.
In 2008, Madonna faced criticism from the anti-violence group Mothers Against Murder And Aggression, when she wore a pair of Chanel shoes with gun-shaped heels to an event.
From Digital Spy