Cee Lo Green Boogies with ‘F— You’ at Toronto Film Festival (video, NSFW)

With apologies to George, Cee Lo Green stole the spotlight, and we took a little video of his most popular performance.

The first full day of the Toronto Film Festival ended in a party-down Friday night with Cee Lo Green providing entertainment.

His hit song, "Forget You," rendered in the original R-rated version, seemed to find a lot of resonance with the crowd. Told you the film business was tough these days.

The Canadian film company Allianz and Aol raised a great, but still very exclusive, tent not far from where George Clooney's 'Ides of March' had just premiered.

With apologies to George, Cee Lo Green stole the spotlight, and we took a little video of his most popular performance.

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