Britney Spears is hotly tipped to make her live music comeback by opening the MTV Video Music Awards in Las Vegas next month (Sep07). Sources close to the pop superstar have revealed there's a "very strong chance" the Toxic singer will perform a new song right at the start of the prizegiving. If the big surprise does take place, it won't be the first time Spears has shocked at the VMAs - her same sex kiss with Madonna was the infamous highlight of the 2003 show. The VMAs, which will feature confirmed performances from Kanye West, Fall Out Boy, Chris Brown and the Foo Fighters, among others, will take place at the Palms Hotel + Casino on 9 September (07).