According to a report from NME.com, fans attending last night Guns n' Roses show wearing t-shirts bearing the likeness of the band's former guitarist Slash were asked to remove the shirts or turn them inside out before entering the O2 arena, where the concert was held.  NME said that they confirmed the Slash tee ban with O2 security personnel, who said that they had been instructed to ask anyone with a Slash t-shirt to remove it, and turn them away if they refused.