John Lennon could go on a tour of Liverpool to mark his upcoming 80th birthday.Laura Lian, who created the six-foot bronze statue of the late music icon, has said she wants it to be displayed in Lennon’s home city by September 21 – the International Day of Peace.The likeness of Lennon – who would have turned 80 in October – has been displayed at London’s Hard Rock Cafe since Lian completed work on it two years ago.But she is now calling for the statue to tour all of the boroughs in Merseyside