She’s given us body stockings, giant snakes and scandalous smooches. What’s next? MTV has confirmed that Britney Spears will open the 2007 MTV Video Music Awards in Las Vegas on Sunday. Spears will perform her new song “Gimme More” as well as the yet-to-be-unveiled “Cry” with the assistance of illusionist Criss Angel. Spears needs more than a little magic to jump-start her career.