The reigning queen of pop paid her respects to the late King of Pop Saturday night with a musical tribute to the star.
Madonna performed at the O2 in London, the same arena where Michael Jackson was set to stage his This Is It! series of concerts beginning July 13.
As Madonna sang "Holiday" during this stop on her Sticky and Sweet tour, a Jackson impersonator took the stage, sporting a sequin-embellished jacket, white glove, white socks and a white T-shirt. An image of a young Jackson was projected in the background.
The impersonator then moonwalked to Jackson's "Wanna Be Startin' Somethin'."
After Madonna shouted, "Let's give it up for one of the greatest artists the world has ever known," she and her dancers donned jeweled gloves on their right hands to honor Jackson in their last dance.
Madonna wasn't the only mega-star paying tribute to Jackson in recent days. At its world tour opening show in Barcelona last week, U2 performed "Angel of Harlem" and Bono threw in some lyrics to some of Jackson's greatest hits.
(Originally published July 4, 2009, at 11:05 p.m. PT)
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Be there as the world says good-bye to the King of Pop. Watch the Michael Jackson memorial on Tuesday at 1 p.m. ET/10 a.m. PT live on E! and E! Online