Former GUNS N' ROSES guitarist Slash shocked staff at British radio station by defacing a picture of singer Deborah Harry. The rocker - who was at Virgin Radio's London headquarters being interviewed on Wednesday (02Jan08) - gave the Blondie star a black eye, moustache and beard when he spotted the portrait on a corridor wall. Amazingly, station bosses saw the funny side and left the picture up. A source tells British newspaper The Sun: "Out of the blue he asked if anyone had a marker pen. "A few minutes later he said he needed to pop to the loo. He then walked over to the painting as a runner walked past and turned to him and mouthed, 'Shhh!'." Breakfast Show DJ Christian O'Connell says, "We're not going to bother replacing the painting. It's a great story to tell visitors."