Eminem street mural in Detroit has vowed to return to the artwork to fix it after it was defaced with graffiti.Chris Devins painted the mural, which was not commissioned or authorised by the rapper, in the Cass Corridor neighbourhood of the Michigan city during a six-hour stint on Saturday (September 4).By the next day, however, the Eminem mural had been defaced, with 18 bird-like sketches being drawn with a Sharpie pen over the six-foot-tall artwork of the rapper.“Only one day after its