"Size zero is like the walking dead. Not sexy at all." As bizarre as always, pop legend Grace Jones warmed the crowd up for Arcade Fire with a set of hula-hooping, zebra-fancy dress, confetti, oh and of course, banging tunes like 'Slave to the Rhythm'. Grace Jones has dubbed 'size zero' modelling "like the walking dead" and slammed Donald Trump in a new interview. Speaking …