A painting by street artist Banksy with an environmental message and an estimate of up to 5 million pounds ($6.3 million) is going up for auction, with some of the proceeds helping victims of the Los Angeles wildfires.

Today (February 18), Sotheby’s revealed Mark Hoppus’ rare Banksy piece is going up for auction. While the painting, Crude Oil (Vettriano), could earn upwards to $6 million. In a statement, Hoppus discussed the highly desired collectible.

Expected to sell for up to $6.3 million, Hoppus says proceeds of the sale will go towards charities aiding those affected by the Los Angeles wildfires.