Christina Aguilera, Cee Lo Green and Smokey Robinson are among performers, while Beyonce will sing via video link.

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Mr. CEE-LO GREEN (Lead singer, Gnarles Barkley): (Singing) Does that make me crazy?

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The show ended with Madonna and Cee Lo Green in jet beaded robes singing Like A Prayer accompanied by a choir.

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Alana was at high school, Este studying "Brazilian carnival music" at UCLA and Danielle was on the road with Cee-Lo Green.

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Finally, Cee-Lo Green pops in for a video chat session from wherever he is on the internets, and we're all treated to an exhibition of lag-afflicted, awkward conversation.

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She has also profiled many actors, singers and artists, including Harrison Ford, Sean Connery, Jeremy Irons, Mel Gibson, Tom Hanks, Clint Eastwood, John Travolta, Jim Carrey, Courtney Love, Billy Crystal, Vanessa Redgrave, Peter O'Toole, Jane Fonda, Glenn Close, Barbara Streisand, Larry Flynt, Hunter Thompson, 50 Cent, James Earl Jones, Henry Winkler, Cee Lo Green, and Frank Zappa.

CNN: About

Sinn Fein MLA Caitriona Ruane had put forward the petition of concern, supported by Alliance Party MLA Anna Lo, and Green Party MLA Stephen Agnew.

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The joint Green Party and Alliance motion was opened by Anna Lo who said the four licences for exploration for hydraulic fracturing, known as "fracking", had been granted despite a "severe deficiency of research".

BBC: Hydraulic fracturing

Alliance MLA Anna Lo said Northern Ireland was missing out on thousands of jobs in the green economy sector, on 12 September 2011.

BBC: Green economy (continued)