So here's the story: King Robbo, an artist operating in London since the 80s, found himself in the middle of a feud after Banksy selfishly painted over his 25-year-old mural. A game of one-upmanship ensued ever since with the pair modifying each other's work at every opportunity. You could say it's a guerilla street art war of sorts. Only now, you don't have to wander the streets to see the battle scars. If you live in London, just head to The Signal Gallery. They're hosting a King Robbo exhibition. I wonder if Banksy will be in attendance?