Britney.com, KeshasParty.com and MyPinkFriday.com, all official sites of superstars Britney Spears, Ke$ha and Nicki Minaj, confirmed this evening that the three femme fatales did a remix to Britney’s latest single, “Till the World Ends”, from her seventh studio album. The track is slated to come on Monday. The official sites had a special countdown quoting lyrics from Spears’ second single, giving an official nod that this femme fatale trio is indeed on a track together

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