The 'Toxic' hitmaker has been offered a contract to continue performing at the venue beyond 2015, but is unsure whether or not to accept the offer.<br /> <br />She admitted: "I'm not really sure. I haven't made up my mind. I really love doing the show. It's a lot, a lot of fun but I'm kind of torn right now. I don't really know what I want to do."<br /><br />As well as working on her residency, the singer is also busy in the studio recording new music.
