Britney Spears has won the Best Of Last Vegas and Best Bachelorette Party awards for her Las Vegas residency.

The 33-year-old pop star - who's been starring at the Planet Hollywood Casino and Hotel in Las Vegas since it opened on December 27, 2013 - has earned rave reviews for her 'Piece Of Me' residency and has taken to Twitter to share her success with her 41.6 million followers on the social media site.

Britney - who was pictured holding the awards backstage at Planet Hollywood's Axis auditorium, where she performs three nights a week - tweeted: ''Look what I got over the weekend! Thank you @BestOfLasVegas, my dedicated team & POM crew, @phvegas, and all of YOU! (sic)''

The singer was actually told she'd won the coveted prizes at the end of March, but only collected her prizes at the weekend.

In March, she tweeted: ''Just heard some AMAZING news!! POM was voted Best Show for @BestofLasVegas!!! BEYOND grateful to have such loyal fans.

''THANK YOU to everyone who voted! Your support means the world. I am so proud of this show & can't wait to see what the future holds! Xoxo. (sic)''