LONDON:- Sir Elton John is reportedly set to retire from touring. The 70-year-old singer-songwriter - who has suffered with poor health in recent years - is poised to walk away from touring the globe after 50 years and one final world tour. Sir Elton - who has sons Elijah, five, and Zachary, seven, via a surrogate - is set to make the announcement ‘’imminently’’, according to the Daily Mirror newspaper. The ‘Rocket Man’ hitmaker spent two nights in intensive care and 12 days in hospital last year, after he contracted a ‘’harmful and unusual’’ bacterial infection during his tour of South America.