Pop sensation Britney Spears has been praised by two choreographers who worked with her on the 'Piece Of Me' live show in Las Vegas. 

Choreographers Ashley Evans and Antony Ginandjar, who worked with Spears during her Vegas residency, told Daily Mail Australia that she was so motivated and enthusiastic that they struggled to keep up with her:

"She was so focused and wanted to learn the whole show in one day. We kept having to slow her down."

The pair admitted that she was always on time and ready to work hard: "It’s so rare to have a rehearsal time start at nine o’clock and have the call time at 12. Britney would always be 15 minutes early."

Antony added: "She’s just so keen and so lovely. We loved her. Working with songs that we grew up with and dance video clips and iconic performances and work to them was so surreal."

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