Crude Oil (Vettriano) was first exhibited by Banksy in 2005 and is the anonymous artist’s reimagining of Jack Vettriano’s career-defining The Singing Butler from 1992, which itself was auctioned by Sotheby’s for £744,800 in 2004.

The musician purchased the artwork in 2011, Sky News reports. 

The painting will now be auctioned by Sotheby’s in London. Some of the proceeds will be donated to causes including the California Fire Foundation, which helps people impacted by the LA wildfires, a children’s hospital, and a cancer research centre.