Sunday, April 24, 2011 8:12pm ET by  
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Britney’s Nicki Minaj party surprise

Britney Spears caused chaos in Hollywood on Friday night when she turned up at a party for soon-to-be touring partner, Nicki Minaj.

According to E! News, the crowd surge after Spears took to the stage resulted in several fans being treated for hyperventilation.

The pair used the event to debut a new remix of ‘Till The World Ends,’ which also features the song’s co-writer, Ke$ha.

Britney later posted on her Twitter account, “Hanging with my girl Nicki Minaj at her after party at The Factory. Love you girl.”

 

Watch fan footage of the event here: