In Pictures: Britney's 'Circus' tour

"I'm like a ringleader, I call the shots," Britney sang as she took to the stage for the first leg of her 'The Circus: Starring Britney Spears' tour. As the world's media took notes, she wowed the 16,000-strong New Orleans audience with a 20-song setlist, 25 costume changes and a magic show that saw her being "chopped in two".

> Click here for more pictures of Britney on stage