The X-Factor talent show judge Simon Cowell has joined Twitter.  The X-Factor relies heavily on the microblogging site as part of its digital platform and now its highest profile member is tweeting.  Simon's first tweet hit last night just before the X-Factor aired.  His first tweet read

It's official, I know it's taken a while. It's really me! We're live in 10 minutes. I'll keep you posted. Lots of love #iamsimon

Follow @SimonCowell