Several of Michael Jackson’s comeback concerts in London have been postponed until next year because producers can’t be ready in time for the July debut, according to a "Dear Customer" e-mail sent to ticket holders Wednesday. The delay comes days after the concert promoter said Jackson was in good health, contrary to media reports he was diagnosed with skin cancer. Jackson’s “This Is It” shows were to begin July 8 at London’s 20,000-capacity O2 Arena.
