Article continues below advertisementOK! can reveal David Bowie's family are said to be finding renewed joy nearly a decade after the rock icon's death as plans gather pace for a major tribute concert celebrating his legacy - a project insiders say has lifted spirits after a period of painful public tension surrounding allegations made by his daughter.The event, scheduled for July at London's O2 Arena, will mark the 10th anniversary of Bowie's death in January 2016 at the age of 69 following an 18-month battle with liver cancer.