What happens in Vegas stays in Vegas - especially if it's Britney Spears's show, as the pop star has signed a new deal to extend her residency in the city.<br />The pop princess, who performs Britney: Piece of Me at Planet Hollywood, has decided to stay on into 2016.<br />After starting the residency in 2013, the Toxic singer celebrated her 100th show last month.<br />Her final shows were due for New Year's weekend, but Planet Hollywood offered her a new deal at the end of July - which she has now accepted.<br />"I'm getting together with my team this week to go over the set list, design some new costumes, and dream up new props.<br />“There are a few songs that are fan favourites that I really want to add to the show.”
