Late King of Pop Michael Jackson's memorial service could turn out to be the "greatest show on earth", just like the celebrity had predicted in a past interview.

About one million fans of the superstar are expected to make the pilgrimage to the Staples Center arena in Los Angeles on July 7, while 750 million more will be watching it on TV.

The Jackson family has established that his send-off will feature performances and tributes from a galaxy of music legends.

There are plans to set up huge screens outside the vast 20,000-seater stadium for mourners who cannot get in.

Reports even recommend that US President Barack Obama has been sent an invitation.

Further people who are said to have been invited for Jacko's last service include Sir Paul McCartney, singer Diana Ross, and screen legend Liz Taylor.

The 'Thriller' hit-maker will be buried in rare 15,000 pounds 14-karat gold plated casket.