A man walks in front of a Banksy mural of Oscar Storm Troopers

A man walks in front of a mural celebrating Banksy's Academy Award achievement signed by Mr. Brainwash in Los Angeles. (credit: GABRIEL BOUYS/AFP/Getty Images)

Banksy mural shows dog urinating on a wall

A graffiti attributed to secretive British artist Banksy shows a dog urinating on a wall in Beverly Hills. (credit: GABRIEL BOUYS/AFP/Getty Images)

Banksy painting of Charlie Brown as arsonist

A graffiti attributed to secretive British artist Banksy depicting Charlie Brown figure starting a fire on the side of a burned-out building on Sunset Boulevard in Los Angeles. (credit: GABRIEL BOUYS/AFP/Getty Images)

Child soldier surrounded by flowers

A graffiti attributed to secretive British artist Banksy depicting a child wielding a machine gun, in black and white surrounded by colored flowers, is spotted in Westwood. (credit: GABRIEL BOUYS/AFP/Getty Images)

Banksy Graffiti Art On West Bank Barrier

A Palestinian labourer works under a large wall painting by elusive British graffiti artist Banksy December 5, 2007 on a building wall in the biblical city of Bethlehem in the West Bank. The Bristol-born artist has adorned Israel's West Bank separation barrier and Bethlehem walls with new images, including one of a dove wearing a flak jacket and a soldier being frisked by a young girl. His works, along with those of other international artists, are part of an exhibition called Santa's Ghetto. (Photo by David Silverman/Getty Images)

Banksy's 'Sweeping It Under The Rug'

The striking large scale spray-painted image entitled 'Sweeping It Under The Carpet' depicts a maid who cleaned the artist's room in a motel in Los Angeles. The piece commissioned by 'The Independent' newspaper edited on Tuesday by U2's frontman Bono, is intended to represent a metaphor for the west's reluctance to tackle issues such as AIDS in Africa. (credit: Dave Etheridge-Barnes/Getty Images)

Banksy hits up Glastonbury Music Festival

Art work said to be by underground artist Banksy is seen on the fence at the Glastonbury Festival site at Worthy Farm, Pilton on June 24, 2010 in Glastonbury, England. (credit: Matt Cardy/Getty Images)

Banksy underground exhibit in London

A giant new exhibition space created by famed graffiti artist Banksy opens to the public on May 3, 2008 in London, England. The disused tunnel beneath Waterloo station has been transformed by 30 artists from around the world. The three day event, tagged as the 'Cans festival', also invites the public to add their own stencil art. (Photo by Jim Dyson/Getty Images)