Britney performs at the O2 Arena

London, (ANI): Britney Spears kicked off the British leg of her Circus tour at The 02 arena to the delight of her fans. The 'Toxic" hitmaker started the show by descending from the ceiling on a circular trapeze, wearing a revealing corset and fishnet tights, singing her recent track Circus, reports Contactmusic.

After a month's break from performing since she wrapped up her North American shows in May (09), Spears seemed to be in a dazzling form as she belted out all her classic hits - and surprised concert goers by remixing a selection of her tracks, including Baby One More Time and Womanizer, especially for her European tour.

Spears flaunted a new toned figure in a range of figure hugging outfits, including a raunchy sequined number with nipple tassells and a ringmaster outfit, complete with whip. The singer stopped during the concert and yelled to the crowd, "What's up London! I am so happy to be here tonight!"