Britney's back and fit to burst as she wows Las Vegas in a very tight bodysuit for her first live performance in over a year

She's been out of the pop limelight playing the doting mother and living the homebody lifestyle for the past year.

But you can't keep a good pop star down for long - as Britney Spears proved last night.

The singer took to the stage in Las Vegas last night for her first live performance since the end of her The Circus Starring Britney Spears tour in November 2009.