The art world is buzzing after Mark Hoppus, bassist of the iconic punk-pop band Blink-182, sold his Banksy artwork, "Crude Oil (Vettriano)," for a staggering £4.3 million (€5.2 million) at a London auction. The sale follows the recent passing of Jack Vettriano, the Scottish painter whose work inspired this unique piece of Banksy's oeuvre.