Britney Spears doesnt have anything to prove. The 'Hold it Against Me hitmaker kicked of the European leg of her tour promoting seventh album, 'Femme Fatale in St Petersburg, Russia, and after selling over 70 million albums in her career so far, she doesnt feel pressure to do anything more than have fun on stage. She said: I dont really have anything to prove at this point. I just do it for fun and see what happens. I have a good group of people around me. We have the show at a certain time every night. And we just try to stay consistent on having a routine and staying fit and healthy. Britney also promised the stage show for the Femme Fatale Tour is as lively as ever. She said: The show is really fun for me, its one of the most entertaining shows that Ive ever done. There are six or seven costume changes, the dancers are just on fire and its a lot of fun. Its a fun show. ES