Lady Gaga Gun Bra Causes Controversy Amid Sandy Hook Shooting Tragedy (PHOTO)

Known for her outlandish attire while performing onstage, Lady Gaga angered anti-gun activists when she wore a gun bra during a Vancouver concert on Friday, Jan. 11.

While on the Canadian stage, Gaga sported a bra with black plastic gun rifles protruding out from each cup.  Along with her controversial torso support, she donned green military-style pants along with high-heeled ankle boots and pale pink hair, according to a CBC News photo.

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On her Monday show "The Talk," host Sharon Osbourne, 60, criticized the singer for featuring the weapons and said she thinks Gaga is setting a bad example for her fans by not practicing what she's preaching, according to The Hollywood Gossip.

"Everything is guns, guns, guns. This is not right, and she should be stopped," Osbourne said. "All I'm asking her to do is to stay true to her foundation, which she said [she created because] she wants the world to be a braver, kinder world."

Many others have taken to Twitter to call the star out for her wardrobe choice.

"26 People lost their lives at Newton," and Lady Gaga "Commemorates by wearing a 'gun bra' #Heartless," one user wrote.

"DISGUSTING!  SO WRONG!  Lady Gaga Gun Bra is Tasteless and Offends Both Sides of the Guns Debate," @DearDarby posted.

@NaughtyNiceRob compared Gaga with the Queen of Pop Madonna, saying, "It feels like everything Madonna does, Lady Gaga has to do.  She's now wearing a gun Bra in concert!  Boooooooo."

While the 26-year-old has worn numerous unorthodox outfits, her latest ensemble has arguable received the worst flak, as 26 people were killed in a mass shooting at Sandy Hook Elementary School in Newton, Conn., just one month ago. 

Metro New York reported on Monday that Gaga picked a fight with "Fashion Police" commentator Kelly Osbourne, calling her a bully for "making fun of others for a living." Sharon defended her daughter on Facebook by posting the following message:

"You say [Kelly's] work on E! with the Fashion Police is 'rooted in criticism, judgment, and rating people's beauty against one another.' Welcome to the real world."