Madonna is to pay tribute to Michael Jackson at her London concert on Saturday night with the help of a dancer who has mastered the King of Pop's moves.

The pop superstar has posted dress rehearsal pictures on her official website and the shots feature Madonna looking on as a Jackson dancing doppelganger performs signature Jacko moves.

The Material Girl's publicist Liz Rosenberg has confirmed Madonna will perform a song and dance tribute to Jackson. It is not known what that will consist of but Madonna used to perform Jackson's "Billie Jean" live.

The "Sticky & Sweet" show will take place at London's O2 Arena, where Jackson was billed to start his 50-date residency later this month.

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(This news article provided by World Entertainment News Network)