Black Eyed Peas out of Michael Jackson memorial concert

Black Eyed Peas out of Michael Jackson memorial concert in Wales on this weekend.

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The band hits include "I Gotta Feeling," has withdrawn due to "unavoidable circumstances", organizers say.

On the bill also include such as Christina Aguilera, Smokey Robinson, Gladys Knight, Leona Lewis and Cee Lo Green for Saturday's "Michael Forever" show at Cardiff's Millennium Stadium.