Simon Cowell’s going all out to make the next series of X-Factor the biggest and best yet. I hear Simon has made a huge bid to sign Michael Jackson to appear and perform on the show for the next series. He’s apparently offered the King of Pop more than £500,000 to appear but he’s waiting to hear back from MJ’s peeps. A source tells me: “He’s desperate for Jacko. That figure is more than Cheryl Cole earns for the entire series of the show – but he’s desperate to have Jacko on board.” Surely Jacko will go for it – he needs the dosh after all!