Deep Purple singer-musician Glenn Hughes said Tuesday he is retiring from touring as he prepares to undergo heart surgery. The 74-year-old musical artist 'has made the difficult decision to step back from live performances for the foreseeable future,' a statement on his Facebook page read. The Cannock, England native said that he has 'had some health issues' over the 'past year' which he is focusing on, moving forward. 'The results from numerous MRIs, CT scans, and an echocardiogram have alerted my medical team, that I need another open-heart surgery,' Hughes said. 'I really have no option and no choice as health is my number one…
