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Don’t worry you can still listen to Metallica on your iPod whilst traveling on the tube, the ban relates to a poster for the bands recent collaboration with Lou Reed.

TFL ruled the poster could not be displayed on the Underground network as it ‘looks too much like graffiti’ The album cover features a limbless mannequin with a realistic expression on a photograph and the album name ‘Lulu’ written across it.

Lou Reed complained about TfL’s stand, asking: “What would Andy Warhol or Jean Michel Basquiat say of this type of frivolous censorship?”

This is not the first time a poster has been banned on the Underground, in 2010 a digital poster for the London Dungeon was banned by the ASA. Merlin Entertainments, which runs the London Dungeon, said that in order to “avoid causing fear and distress” it had followed London Underground’s guidelines in “avoiding flames and excessive, dripping or running blood”.

TFL seem happy for the London Dungeon poster to be displayed at Tube Stations but the ASA pulled it following a number of complaints from the general public.