Britney Spears enlisted Nicki Minaj and Ke$ ha on the remix of her monster club hit “Till the World Ends” (Produced by Dr. Luke)….but on Femme Fatale tour dates where Nicki was not available, Britney used this video clip of Nicki’s verse instead. (spotted at Mr. X’s)

Watch footage of Britney and Nicki performed this together….
After the jump


Britney Spears and Nicki Minaj perform “Till The World Ends” in Los Angeles, June 2011

Watch more from this concert here:
Nicki Minaj & Britney Spears Bring Their Girl Power To L.A.

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