Lester and Jackson are godfathers to each other's children, and the families recently spent time together when the pop superstar was in London planning his comeback shows at the 02 Arena in London.
"He was in such good form, such good spirits, so positive... He was looking forward to his concerts here in London... I'm just absolutely devastated," Contactmusic quoted Lester as saying. "They're (Jackson''s kids) the most fabulous kids and I will do anything... I'm here for them 24/7, so whatever they need, they've got from me. Michael was one of the best... He made me ashamed, he was such a good father," he added.