Madonna is paying tribute to Michael Jackson in the same arena where he was to stage his great comeback.
PHOTOS: Stills from the video of Jackson's final performance.
The superstar is preparing a special part of her concert Saturday at O2 arena. Madonna publicist Liz Rosenberg says she is going to unveil a special song, along with a choreographed dance in honor of Jackson.
Michael Jackson was to perform his comeback concerts at O2 starting July 13. He died last week at 50. He had been rehearsing for those shows in his final days.